tdf#120761 doc import: fix z-order background logic

At first I thought I didn't need to jump
past the hell layer, but then a good night
of sleep told me I better revisit this,
and test a few a my assumptions.

Unfortunately, I don't know how to design
a test document with the specific order
I would need to test this.
So I had to settle for proving it on paper.

I did confirm that BodyText in the background
is still higher than header text in the foreground,
so indeed the header is always the lowest position.

Change-Id: I2054c8fc3ec1e1e7a211397cebe9aff145d701be
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/113906
Tested-by: Jenkins
Reviewed-by: Justin Luth <justin_luth@sil.org>

0 files changed, 0 insertions, 0 deletions