Hey y'all,
Yesterday (Monday, 7th) Alex Monk submitted and subsequently back-ported
and deployed a fix for an annoying bug in the code that registers the
EventLogging schemas in the MobileFrontend extension [0]. The bug resulted
in browse and diff click events failing to log as associated schemas
weren't registered.
The patch that introduced the bug was merged on Tuesday, 25th August,
which, I think, means that it'd have been deployed on Thursday, 3rd
September – that's a long weekend's worth of data that we won't see again.
Thanks to Alex for squashing the bug so diligently.
–Sam
[0]
https://gerrit.wikimedia.org/r/#/c/236239/