Resolves: #i125289# do apply possible changed <GraphicStreamURL>...

only for embedded images which already have its stream inside the package

fixes also issue 125290

(cherry picked from commit 9602a121b458e7456fc533dad86f434f846a72ba)

Conflicts:
	xmloff/source/draw/shapeexport2.cxx

Change-Id: I5af0093b20f2f291d3a94c690bfbdb59a59320c3
(cherry picked from commit fd641c7b23ce4205c29fc0c564b73336cb2cfb07)
Reviewed-on: https://gerrit.libreoffice.org/10487
Reviewed-by: David Tardon <dtardon@redhat.com>
Tested-by: David Tardon <dtardon@redhat.com>