fontforge/fontforge — pull request #1074 by blipvert (2013-12-30 21:23:16+00:00)
Title: If the user has scaled to an absurdly small em size, try to contain the damage by not rounding to int.

Ideally this should be a settable checkbox as on the Transformations dialog. Most of the time rounding to int is probably desirable, but not always.