BehaviorTreeEditor: Message Window / "Unhandeled"[sic] exception

[paulhazen]

Bug Description

If you open the new tree dialogue, then click cancel, then select the 'New tree.' item in the list, an unhandled exception will happen (only it's spelled "unhandeled").

My experience (Repro)

1. Launch BehaviorTreeEditor.exe
2. In the BehaviorTreeEditor, go to File > New(N)

      

3. Click "Cancel" on the subsequent dialogue

      

      Note below the presence of the item "New Tree." added to the "Message" window:

      

4. Finally, click on the "New Tree." item in the "Message" window.

      

[paulhazen]

This is probably more nit-picky than anyone asked for... if so, please close issue.