The Wikimedia Phabricator team needs help from someone familiar with PERL.
The Bugzilla API has a bug, which we tried to fix with a patch, but now that patch creates another problem. Now we either break comments or binary attachments. The details:
Upstream Bugzilla XML-RPC API issue creates invalid XML https://phabricator.wikimedia.org/T815
Your help is welcome! It doesn't seem to be too complicated. The task doesn't require any background on Phabricator or Bugzilla.