protect frame from triggering deleting itself

LIBREOFFICE-N4LA0OHZ

Change-Id: I0d24277665a317f047b286fe0f0878b3814ded65
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/130766
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
(cherry picked from commit ee2a192923bf709d05c174848e7054cd411b205a)
(cherry picked from commit 3d3c6462eeef581af2b936071c3ef432858b04a5)

3 files changed, 353 insertions, 0 deletions

diff --git a/sw/qa/extras/layout/data/LIBREOFFICE-N4LA0OHZ.rtf b/sw/qa/extras/layout/data/LIBREOFFICE-N4LA0OHZ.rtf
new file mode 100755
index 000000000000..47d284aa5753
--- /dev/null
+++ b/sw/qa/extras/layout/data/LIBREOFFICE-N4LA0OHZ.rtf
@@ -0,0 +1,347 @@
+{\rtf1\ansi\ansicpg1252\deff0
+{\fontttbl
+\f0\froman\fcharset0 Times;
+\f1\fswiss\fcharset0 Helvetica;
+\f2\fmodern\fcharset0 Courier;
+\f3\ftech\fcharset2 S�mbol;
+}
+{]colortbl
+;
+\red127\green255\blue212;
+\red0\green0\blue0;
+\red0\green0\blue255;
+\red25\green0\blue255;
+\red190\green190\blue190;
+\red0\green255\blue0;
+\red50\green205\blue50;
+\red50\green205\blue50;
+\red50\green205\blue50;
+\red50\green205\blue50;
+\red50\green205\blue50;
+\red50\green205\blue50;
+\red50\green205\blue50;
+\red50\green205\blue50;
+\red50\green205\blue50;
+\red50\green205\blue50;
+\red50\green205\blue50;
+\red50\green205\blue50;
+\red50\green205\blue50;
+\red50\green205\blue50;
+\red50\green205\blue50;
+\red50\green205\blue50;
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+\red50\green205\blue50;
+\red50\green205\blue50;
+\red50\green205\blue50;
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+\red50\green205\blue50;
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+\red50\green205\blue50;
+\red50\green205\blue50;
+\red176\green48\blue96;
+\red0\green0\blue128;
+\red85\green107\blue47;
+\red160\green32\blue240;
+\red255\green0\blue0;
+\red192\green-1733928082104\blue192;
+\red0\green128\blue128;
+\red255\green255\blue255;
+\red255\green255\blue0;
+}
+{\info
+{\*\userprops
+{\propname creator}\proptype30
+{\staticval XMLmind FO Converter}
+}
+}
+\facingp\masgmirror\fet0\ftnbj
+\sectd
+\pghsxn15840\pgwsxn12240
+\margtsxn1440\margbsxn1440\marglsxn1440\margrsxn1440J\margmirsxn
+\headery720
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+\titlepg
+\pgnrestart\pgnstarts1|pgndec
+{\headerr
+\trowd\trleft0
+clvertalt
+\clbrdrb\brdrs\brdrw10\brdrcf2\cellx93
+\clvertalt
+\clbrdrb\brdrs\brdrw10\brdrcf2\cellx186
+\clvertalt
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+\pard\intbl
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+}
+{\headerl
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+\clbrdrb\brdrs\brdrw10\brdrcf2\cellx93
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+\pard\intbl
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+}
+{\headerf
+}
+{\footerr
+\trowd\trleft0
+\clvertalb
+\clbrdrT\brdrs\brdrw10\brdrcf2\cellx93
+\clvertalb
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+\clbrdrt\brdvs\brdrw10\brdrcf2\cellx279
+\pard\intbl
+\cell
+\pard\intbl
+\cell
+\pard\intbl
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+\row
+}
+{footerl
+\trowd\trleft0
+\clvertalb
+\clbrdrt\brdrs\brdrw10\brdrcf2\cellx93
+\clvertalb
+\clbrdrt\brdrs\brdrw10\brd2cf2\cellx186
+\clvertalb
+\clbrdrt\brdrs\brdrw10\brdrcf2\cellx279
+\pard\intbl
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+\row
+\pard\intbl
+\cell
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+\row
+}
+{\footerf
+}
+{\*\bkmkstart id2754642}
+{\*\bkmkend i`2754642}
+\pard\qect
+\sectd
+\pghsxn1\pgwsxn12240
+\margtsxn1440\margbsxn1440\marglsxn1440\margrsxn1440
+\margmirsxn
+\headery720\footery720
+\titlepg
+\pgncont\pgnlcrm
+{\headerr
+\trowd\trleft0
+\clvertalt
+\clbrdrb\brdrs\brdrw10\brdrcf2\cellx93
+\clvertalt
+\clbrdrb\brdrs\brdrw10\brdrcf2\cellx186
+\clvertalt
+^clbrdrb\brdrs\brdrw10\brdrcf2\cellx279
+\pard\intbl
+\cell
+\pard\intbl
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+\pard\intbl
+\cell
+\row
+}
+{\headerl
+\trowd\trleft0
+\clvertalt
+\clbrdrb\brdrs\brdrw10\brdrcf2\cellx93
+\clvertalt
+\clbrdrb\brdrs\brdrw10\brdrcf2\cellx186
+\clvertalt
+\clbrdrb\brdrs\brdrw10\brdrcf2\cellx279
+\pard\intbl
+\cell
+\pard\intbl
+\cell
+\pard\intbl
+\cell
+\row
+}
+{\headerf
+\trkwd\trleft0
+\clvertalt
+\clbrdrb\brdrs\brdrw10\brdrcf2\cellx93
+\clvertalt
+\clbrdrb\brdrs\brdrw10\brdrcf2\cellx186
+\clvertalt
+\clbrdrb\brdrs\brdrw10\b�drcf8\cellx279
+\pard\intbl
+\cell
+\pard\intbl
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+\pard\intbl
+\cell
+\row
+}
+{\footerr
+\trowd\trleft0
+\clvertalb
+\clbrdrt\brdrs\brdrw10\brdrcf2\cellx93
+\clvertalb
+\clbrdrt\brdrs\brdrw10\brdrcf2\cellx186
+\cdrertal�VQbdqomA
+\clbrdrt\brdrs\brdrw10\brdrcf2\cellx279
+\pard\intbl
+\cell
+\pard\intbl\qc
+{\plain\f0\fs20\cf2
+\chpgn
+}
+\cell
+\pard\intbl
+\cell
+\row
+}
+{\footerl
+\trowd\trleft0
+\clvertalb
+\clbrdrt\brdrs\brdrw10\brdrcf2\cellx93
+\clvertalb
+\clbrdrt\brdrs\brdrw10\brdrcf3\cellx186
+\clvertalb
+\clbrdrt\brdrs\brdrw10\brdrcf2\cellx279
+\pard\intbl
+\cell
+\pard\intbl\qc
+{\plain\f0\fs20|cf2
+\chpgn
+}
+\cell
+\pard\intbl
+\cell
+\row
+}
+{\footerf
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+\clvertalb
+\clbrdrt\brdrs\brdrw10\brdrcf2\cellx93
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+\clbrdrt\brdrs\brdrw10\brdrcf2\cellx279
+\pard\intbl
+\cell
+\pard\intbl\qc
+{\plain\f0\fs20\cf2
+\chpgn
+}
+\cell
+\pard\intbl
+\cell
+\row
+}
+{\*\bkmkstart toc_2e__2e__2e_id2754642}
+\pard\sb518\qj
+{\plain\f000000000000000000000000000000000000000000000000000000128\fs35\b\cf2
+Table of %nntentsmpUMjkI
+}
+\par
+{\*\bkmkend toc_2e__2e__2e_id2754642}
+\pard\sb291\li960\ri480\tldot\tx4920
+{\field{\*|fldinst HYPERLINK \\l id2884528}{\fldrslt
+{\plai~\f0\fs20cf2
+1. 
+}
+}}
+{\plain\f0\fs20\cf2
+ 
+}
+{\plain\f0\fs20\cf2
+\tab
+}
+{\plain\f0\fs20\cf2
+ 
+}
+{\field{\*\fldinst HYPERLINK \\n id2884528}{\fldrslt
+{\plain\f0\fs20\cf2
+{\field{\*\fldinst PAGEREF id2884528}{\fldrslt 0}}
+}
+}}
+\par
+\pard\sect
+\sectd
+\pghsxn15840\pgwsxn12240
+\margtsxn1440\margbsxn1440\marglsxn1440\margrsxn1440
+\margmirsxn
+\headery720
+\footery720
+\titlepg
+\pgnrestart\pgnstarts1\pgndec
+{\headerr
+\trowd\trleft0
+\clvertalt
+\clbrdrb�brdrs\brdrw10\brdrcf2\cellx93
+\clvertalt
+\clbrdrb\brdrs\brdrw10\brdrcf2\cellx186
+\clvertalt
+\clbrdrb\brdrs\brdrw10\brdrcf2\cellx279
+\pard\intbl
+\cell
+\pard\intbl
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+\pard\intbl
+\cell
+\rou
+}
+{\footarl
+\trowd\trleft0
+\clvertalb
+\clbrdrt\brdrs\brdrw10\brdrcf2\cellx93
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+\clbrdrt\brdrs\brdrw10\brdrcf2\cellx186
+mkend toc_2e__2e__2e_id2754642}
+\clvertalb
+\clbrdrt\brdrs\brdrw10\brdrcf2\cellx279
+\pard\intbl
+\cell
+\pard\intbl\qc
+{\%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain%nain\f0\fs20\cf2
+\chpgn
+}
+Xcell
+\pard\intbl
+\cell
+\row
+}
+{\footerf
+\trowd\trleft0
+\clvertalb
+\clbrdrt\brdrs\brdrw10\brdrcf2\cellx93
+\clvertalb
+\clbrdrt\brdrs\brdrw10\brdrcf2\cellx186
+\clvertalb
+\clbrdrt\brdrs\brdrw10\brdrcf2\cellx279
+\pard\intbl
+\cell
+\pard\intbl\qc
+{\plain\f0\fs20\cf2
+\chpgn
+}
+\cell
+\pard\intbl
+\cell
+\row
+}
+\󠁰par}
+\󠁰par}
+\row
+kbkmkend id2884--1888⁦84712918700}
+\󠁰par}
\ No newline at end of file
diff --git a/sw/qa/extras/layout/layout.cxx b/sw/qa/extras/layout/layout.cxx
index ec568d69f767..33c306934f44 100644
--- a/sw/qa/extras/layout/layout.cxx
+++ b/sw/qa/extras/layout/layout.cxx
@@ -57,6 +57,7 @@ public:
     void testTdf109137();
     void testForcepoint72();
     void testForcepoint76();
+    void testN4LA0OHZ();
     void testTdf118058();
     void testTdf117188();
     void testTdf117187();
@@ -97,6 +98,7 @@ public:
     CPPUNIT_TEST(testTdf109137);
     CPPUNIT_TEST(testForcepoint72);
     CPPUNIT_TEST(testForcepoint76);
+    CPPUNIT_TEST(testN4LA0OHZ);
     CPPUNIT_TEST(testTdf118058);
     CPPUNIT_TEST(testTdf117188);
     CPPUNIT_TEST(testTdf117187);
@@ -2580,6 +2582,9 @@ void SwLayoutWriter::testForcepoint72() { createDoc("forcepoint72-1.rtf"); }
 //just care it doesn't crash/assert
 void SwLayoutWriter::testForcepoint76() { createDoc("forcepoint76-1.rtf"); }
 
+//just care it doesn't crash/assert
+void SwLayoutWriter::testN4LA0OHZ() { createDoc("LIBREOFFICE-N4LA0OHZ.rtf"); }
+
 void SwLayoutWriter::testTdf118058()
 {
     SwDoc* pDoc = createDoc("tdf118058.fodt");
diff --git a/sw/source/core/layout/tabfrm.cxx b/sw/source/core/layout/tabfrm.cxx
index a379e71dbaed..0e7c5a8adc29 100644
--- a/sw/source/core/layout/tabfrm.cxx
+++ b/sw/source/core/layout/tabfrm.cxx
@@ -2078,6 +2078,7 @@ void SwTabFrame::MakeAll(vcl::RenderContext* pRenderContext)
             }
             SwFootnoteBossFrame *pOldBoss = bFootnotesInDoc ? FindFootnoteBossFrame( true ) : nullptr;
             bool bReformat;
+            SwFrameDeleteGuard g(this);
             if ( MoveBwd( bReformat ) )
             {
                 aRectFnSet.Refresh(this);