This follows on some discussion from T330792.
taavi:
I believe the Bug: #nnn was used to refer to Bugzilla in the past - how are you planning to avoid confusion with that?
brennen:
Or maybe we just shouldn't use the custom bug tracker integration to avoid confusion, remove the gitlab-phabricator matching for #nnn, and standardize on the Tnnn syntax, since that's what people are already used to. I'm not sure the integration adds all that much value.
xcollazo:
My vote is for standardizing on Tnnn, as that is what I expect as a Phabricator user. It also avoids your ambiguity issue.
I think I agree, and this also cuts in half the amount of search traffic hitting our GitLab instance every time a Phabricator task is viewed, which is probably not a bad idea.
Bug: T324149 Bug: T330792