before importing a document via <SfxObjectShell::ImportFrom(..)> (used for
OOXML *.docx import)

(cherry picked from commit 920bf1164fe0c3d232dc0f7d476eec1660f4690e)

Conflicts:
	sfx2/inc/sfx2/objsh.hxx
	sw/inc/docsh.hxx
	sw/source/ui/app/docsh.cxx
	sw/source/ui/app/docsh2.cxx
	sw/source/ui/app/docshini.cxx
	sw/source/ui/app/docst.cxx
	sw/source/ui/app/docstyle.cxx

Change-Id: Id32bd6a8ef081dd4af4d832aa42317de7f64184f