Resolves: #i123789# ppt import, if sub address is not document...

internal link, take it as it is

(cherry picked from commit d44e9a9244558f63b3feaf923802ed32b4931283)

Conflicts:
	sd/source/filter/ppt/pptin.cxx

Change-Id: Ic2541bcf7e368a4e9f2cc87353be165fc203dbac