In the context of tag synonyms, any tag that is a substring of the main tag is not listed as an available synonym. Removing the section of code in this PR fixes the issue, while not hindering the ability to block a tag.
blockedTags attribute is used in one other template (tag notification user preferences). Interestingly, in this context, the behavior appears correct both before and after the change.
It’s possible I’ve overlooked something, or there’s a better solution. Please let me know if so!