I have the following condition:

<if-src-attr mode="regex" name="mailforwardingaddress" op="not-equal">.*@$int-domain$</if-src-attr>

GCV int-domain contains the text:
bartest.info

I've entered it by hand in both designer and iMangler.
In the trace it is expanding the period with an extended character as below and failing:

BARTEST AD ST: Expanded variable reference '$int-domain$' to 'bartestinfo'.
BARTEST AD ST: (if-src-attr 'mailforwardingaddress' not-match ".*@$int-domain$") = TRUE.

The text here doesn't do it justice. The symbol looks like a domino.
Did I goober something up here?