[Lazarus] Is this a bug in LCL or in the FPC heap manager (backtrace inside)

[Bernd]

I found it. I was under the impression that
gtk_selection_data_set_uris() would make a deep copy of all the
strings but it seems it will take ownership.

It was my *own* array (on the other end of that drag-drop, on the
sender side, same application) that ultimately caused the crash and
made it look like the receiving side was at fault. Strange is only
that i did not crash with cmem.