Change 689532 abandoned by Jdlrobson:
[mediawiki/core@wmf/1.37.0-wmf.5] Revert "Create buildPersonalPage method for SkinTemplate class, add menu item to personal menu.."
I will be backporting https://gerrit.wikimedia.org/r/c/mediawiki/core/ /689889 instead
See https://www.mediawiki.org/wiki/Phabricator/Project_management#Priority_levels "Something is broken and needs to be fixed immediately, setting anything else aside". I dropped everything to identify the problematic change, test a revert locally, merge it in Gerrit and ping the relevant Phabricator tasks. As I wrote in my commit message, it was an unannounced breaking change in violation of the stable interface policy and therefore shouldn't have been merged in the first place.
The wheel warring that happened earlier was incredibly inappropriate, I don't really have anything else to say at the moment.