Prevents traceback (below) that happened when canceling the adding font dialog

FontBureau / fbOpenTools

Some tools for working with UFOs in RoboFont.

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Closed miguelsousa closed 8 years ago

miguelsousa commented 11 years ago

Traceback (most recent call last): File "OverlayUFOs.py", line 114, in drawSourceFonts AttributeError: 'NoneType' object has no attribute 'has_key'