This is essentially a footgun because the user can accidentally turn it
off and get non-AdES signatures which use obsolete SHA1 hashes.
Unfortunately it turns out that the initial setting of the checkbox only
works for ODF, because OOXML have m_sODFVersion set to "1.0" due to some
defaulting code somewhere.
So what this checkbox actually did is unintentionally disable XAdES
signatures for OOXML by default.
Now that i actually test it by setting ODF version 1.1 in
Tools->Options, it turns out that signing ODF 1.1 documents isn't
possible at all, a dialog pops up that says "Signing documents
requires ODF 1.2 (OpenOffice.org 3.x)".
Change-Id: I0eaf590c290b2c0ee0ff890ed73f0dbea4cf0ce3
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/160785
Tested-by: Jenkins
Reviewed-by: Michael Stahl <michael.stahl@allotropia.de>
Michael Stahl
4eebf31e38