the index variable m_FrameList used to reference the current frame uses
the state EMTY_FRAMELIST to mark as invalid, which is the max integer
number. Thus all usages have to be secured to not use m_FrameList
if set to EMPTY_FRAMELIST. This was missing in some places.
the max integer
number. Thus all usages have to be secured to not use m_FrameList
if set to EMPTY_FRAMELIST. This was missing in some places.

Reviewed-on: https://gerrit.libreoffice.org/19753Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Katarina Behrens <Katarina.Behrens@cib.de>

Cherry-picked from f0cef70c

Change-Id: Ie1cf4ae2cb79d821f634ec78b621a2647abc61a8
Reviewed-on: https://gerrit.libreoffice.org/19787Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>