i123765 reset buffered DropTarget when undocking

1 files changed, 5 insertions, 0 deletions

diff --git a/vcl/source/window/dockwin.cxx b/vcl/source/window/dockwin.cxx
index bee7abff522c..8992486fd438 100644
--- a/vcl/source/window/dockwin.cxx
+++ b/vcl/source/window/dockwin.cxx
@@ -864,6 +864,11 @@ void DockingWindow::SetFloatingMode( sal_Bool bFloatMode )
                 // BorderWindow den Parent umsetzen
                 if ( mpOldBorderWin )
                     mpOldBorderWin->SetParent( pWin );
+
+                // #123765# reset the buffered DropTargets when undocking, else it may not
+                // be correctly initialized
+                mpWindowImpl->mxDNDListenerContainer.clear();
+
                 SetParent( pWin );
                 SetPosPixel( Point() );
                 mpWindowImpl->mpBorderWindow = pWin;