crash in autoprojectpart

[Victor Röder]

Hi,

> i found a crash in autoproject-part. When i select a target and click on
> "Add existing Files" it crashes after schowing the dialog for a very short
> time.
>
> Sometimes the crash does not occur, but i can't reproduce exactly when.

Yes, that might be. I noticed something similar while implementing "Removing 
target" but thought it was something else that made Gideon crash :-).

I will commit a fix that will hopefully help.

Thank you,
	Victor