$tablesUsed does not let the test run in the correct group in CI
Fix casing and remove duplicate as well
Change-Id: Id9e092865464de4900965840834d946925c728e5
Use multiple error boxes instead of a wikitext list of error messages,
as the latter has several issues (as reported on phab). Also, remove the
edit-error-* messages as they don't seem to add any value. Also, don't
use the passed-in context, inject what the class actually needs instead
(but keep the context for the hook).
Bug: T303060
Bug: T230229
Change-Id: I2806e57826e7ab062b45dd1d9972b05fd6baeafb
Specifically, remove the conditional processing of
ContentModelChangeConstraint and ChangeTagsConstraint in
favor of early returns within the constraints
Bug: T157658
Change-Id: I377c0e3d9611d2da0a2d0f9bca055d65a1bec7e6
