Should UI regressions (e.g. no fatals) with non-default skins (Timeless, Monobook, Modern, CologneBlue) ever block the train ? T300100 If so under what circumstances? e.g. loss of functionality/content, visually incorrect, breaks a workflow
I’m asking because there’s a lot of ambiguity in https://wikitech.wikimedia.org/wiki/Deployments/Holding_the_train#Issues_that_hold_the_train and my talk page question on https://wikitech.wikimedia.org/wiki/Talk:Deployments/Holding_the_train never got any answers yet we've now had a couple of minor incidents that have threatened to do so and it's clear that most developers are only testing on Vector (and hopefully Minerva the mobile skin).
If not, should we should likely add some basic tests to all the non-default skins e.g. UI Regression tests, some basic integration smoke tests.
Bugs to consider (note not all of these blocked the train, but in theory could have done):