Nothing really that wrong with acquiring a disposed reference, for now.

Emitting events acquires and passes references conservatively, and the
VCLEVENT_OBJECT_DYING event hit this hard.

Change-Id: If86991ead63b05425a237bf213583c020ba4e582

include/vcl/outdev.hxx

@@ -274,7 +274,6 @@ private:
 
     inline void acquire() const
     {
-        assert(!mbDisposed);
         mnRefCnt++;
     }