[FIXED] Error after saving with one glyph and undoing

[newtae]

Here are the bug report’s details.

• Open any typeface.
• Highlight all glyphs excluding .notdef and press the Delete key.
• Save it and undo.
• Error messages that appear: List index out of bounds (256) and CRC32 check: corrupted data encountered!

[Erwin Denissen]

Thank you for the error report.

I can indeed reproduce the issue, so expect to see this fixed with the next upcoming release.