Bulk Tagging offers wrong tags for category

Discourse 3.3.0.beta1, just updated.

I’m seeing an issue where the Bulk Tag commands (e.g. Replace Tags or Append Tags) is not offering the correct tags for the category I am in.

The category is restricted to the “Release Types” tag group (although removing that restriction doesn’t seem to have any effect here; same for “Also allow other tags”):

The “Release Types” tag group is defined like this:

When I try to use the Bulk Tag commands, I get offered these random tags instead (which have been used elsewhere on the forum, but not in that category), and even manually typing the correct tag is not accepted:

The tags it offers seem quite random, as well. It’s like it’s choosing some of the least used tags on the forum.

On the other hand, when creating new posts or editing individual posts, the correct tags are offered:

Am I doing something wrong, or is this a bug in the bulk tagging UI?

Please let me know if I can provide any more info, or test out anything. (I don’t mind running sql or railsc commands if needed, although I’m not an expert.)