maintenance/populateChangeTagDef.php: Handle missing valid_tags table
authorBrad Jorsch <bjorsch@wikimedia.org>
Wed, 14 Aug 2019 15:57:12 +0000 (11:57 -0400)
committerBrad Jorsch <bjorsch@wikimedia.org>
Wed, 14 Aug 2019 15:57:12 +0000 (11:57 -0400)
commitc910b9b43a65ba14b8d1775b202b5eac63322171
treeb1cd11aaec3a8666dfd74eafa3d5f3f9d510633e
parente346ddb336e865e7abed30c3dd50da3ce05773e6
maintenance/populateChangeTagDef.php: Handle missing valid_tags table

The valid_tags table was added in MW 1.15 and removed in 1.33. If
someone is trying to upgrade from a really old version of MediaWiki,
valid_tags may not exist even though change_tags.ct_tag does.

Bug: T230317
Change-Id: Ib94542878b8d301c1d7f806405ee39838ebc6d4a
maintenance/populateChangeTagDef.php