Last modified: 2014-04-14 22:13:46 UTC
This is related to bug 50996. Open a page that contains hieroglyphics, like https://www.mediawiki.org/w/index.php?oldid=942532#Hieroglyphics You should be able to open the hieroglyphics "node" by double-clicking, but it isn't working.
I think Trevor fixed this in an unrelated recent commit, let me find it.
https://gerrit.wikimedia.org/r/#/c/121514/
Change 124469 had a related patch set uploaded by Catrope: Actually actually fix double-clicking on hieroglyphics nodes https://gerrit.wikimedia.org/r/124469
Change 124469 merged by jenkins-bot: Actually actually fix double-clicking on hieroglyphics nodes https://gerrit.wikimedia.org/r/124469
Verified the fix on betalabs
Verified the fix in test2