SdrMarkView tiled rendering: fix unexpected empty graphic selection events
SdrMarkView tiled rendering: fix unexpected empty graphic selection events

There are a number of mark views, but we're only interested in the one
that belongs to the editing window. Ignore the virtual device of the
slide sorter and everything else.

With this, a shape remains selected after resized, and can be resized
multiple times again properly.

Change-Id: I7f31c72567b9d01aaa75871ff5d1efdb3151a0e4

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core