Wikimedia Bugzilla is closed!

Wikimedia migrated from Bugzilla to Phabricator. Bug reports are handled in Wikimedia Phabricator.
This static website is read-only and for historical purposes. It is not possible to log in and except for displaying bug reports and their history, links might be broken. See T2796, the corresponding Phabricator task for complete and up-to-date bug report information.

As a bug and feature tracking tool we will use
[http://www.atlassian.com/software/jira Jira]. This tool supports external
references called trackbacks (specification at:
http://www.movabletype.org/docs/mttrackback.html). 

Does Wikimedia support this functionality?
In Jira trackbacks are used as described at:
http://www.atlassian.com/software/jira/docs/v3.0/trackback.html?clicked=jirahelp.

MediaWiki doesn't support trackback support actually. It might be an interesting
feature :o)

Switching to enhancement.

implemented in 1.5. 

Trackback support removed in r104051 (1.19alpha). Is this a feature that would be still be desired in an extension?