Instructions for people who joined gitlab after bugzilla migration
Unfortunately not everybody joined this gitlab instance before the migration, meaning they don't have notifications/attributions for all their bugzilla contributions.
But it is somewhat easy to do, by searching in the global issues list for
Submitted by <your bugzilla name>,
<your bugzilla name> submitted a patch,
<your bugzilla name> said, ...
We should add that somewhere (where ?) to the documentation and send out an e-mail/tweet/...