I think this commit will fix your issues:
https://github.com/discourse/discourse/commit/4c7dfed32ea39cde85d575ae4b60fe2a70899c76
However @ZackFea I notice you do you have tags created on your site, so I’m unsure this will fix it, I have yet to recreate an issue with existing tags.
EDIT: I’m pretty sure this will fix it.