Color by attribute dropdown not cleared by "Close data"
The dropdown box in the toolbar for "Color by attribute" is not cleared when the "Close Data" menu option is selected.
To reproduce:
Load test2D.cmb
Load AdHSurfaceWater.crf
Create 2-3 friction type attributes and assign them to faces
Select "Color by Attribute" if not selected and chose the attribute type that was created
Select "Close Data" from the menubar
Change "Color by" to None, and back to "Attribute"
The program segfaults, presumably because it cannot find the attribute that was previously loaded.