silverstripe/sapphire — pull request #767 by tractorcow (2012-09-03 06:25:30+00:00)
Title: FIXED: Issue where messages attached to checkbox fields would not be displayed

I'm not sure what the old template was referencing, but any checkbox with an error would attempt to use $messageBlock as the error message instead of $Message. This would always come up with a blank error message instead of the correct one.

I couldn't find any reference to this in the code, so I replaced it. Voila!