This commit fixes a crash in STYLEREF caused by a dereferenced nullptr
when serializing chapter fields for .doc export. Along with the STYLEREF
changes, I also changed the chapter export logic to allow exporting
chapter fields when they were in document text, and to use the style of
the thing they pointed to. Unfortunately, in some cases that would be
null. This commit makes us fall back to previous behavior in those
cases.
This commit also adds import logic for styleref on the TEXT namespace in
addition to LO_EXT. This is important as if/when the STYLEREF field is
no longer LO_EXT we want to be able to open new documents in old
versions of libreoffice. This was erroneously missed when we changed
TEXT references to LO_EXT in our export logic.
Change-Id: I383828c9409afc8545af379307f528cee2e1a960
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/159226
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
Skyler Grey
7924d8fc27