tdf#159683 sw content controls, plain text: fix crash with the clipboard docHEADmaster

Regression from commit c804c5354855188b5a37219cfe11dc079dc235f4 (sw
content control: fix lost properties on copy&paste, 2023-03-10), select
a plain text content control, copy it to the clipboard, quit: assertion
fails during shutdown because the doc's "placeholder text" char style is
still referenced by a client.

What happens here is that the SwContentControl copy ctor copies the
plain text flag, and that flag is only read in SwTextNode::InsertHint(),
so that causes the problem. Note how that code is inconsistent: we avoid
the creation of dummy characters in the copy case, but we still try to
adjust the start/end of the content control attribute in the copy case,
which makes not much sense.

Fix the problem by not adjusting the content control attribute
boundaries in the copy case, since the original intention was to do
thees corrections only at a UI level, during interactive edit.

It's not clear why this inconsistency had an influence on the clients of
the char style, though.

Change-Id: I86b0516464f24fc453dcd97588dafb8afd010a9e
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/166882
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
Tested-by: Jenkins

0 files changed, 0 insertions, 0 deletions