[Groff] mom and footnote marks

[Wartan Hachaturow]

Hello.

I have discovered a very annoying "feature" of mom which I can't
figure out how to fix.
Suppose you have a situtation where a word with a footnote is immediately
followed by a comma. As far as I understand, this is the way to do that:
some word\c
.FOOTNOTE
This is a footnote.
.FOOTNOTE OFF
, and this is what follows a comma.

However, such a code inserts a whitespace after a footnote mark,
making the comma "hanging"
between two whitespaces, which is just ugly. 
Is there any way to change that behaviour or am I just doing something wrong?

-- 
TIA, Wartan.