the following changes have been pushed to bugzilla.mozilla.org:
-  The input field for suggested reviewers when editing a component needs ‘multiple’ to be true for allowing for more than one username
-  mentor field updated/reset when a bug is updated as a result of a change on a different bug (eg. see also, duplicate)
-  bugzilla.mozilla.org leaks emails to logged out users in “Latest Activity” search URLs
discuss these changes on mozilla.tools.bmo.