Build "comment" variable

Hi guys,
Does $Build.Comment$ or similar still exist at Continua CI 1.9.1.511? Tried but can’t find it.

W’ere Trying to force mandatory build comments for some of our configurations
We’ve found $Build.StartComment$ but not sure that this is exactly what I’m looking for because:

    if '$Build.StartComment$' Matches '' then stop/fail

This logic fails regardless of if there is any input under the build “Comment” input field.