Alan Guo Xiang Tan 62696b9ee7
DEV: Properly support composing multiple category filters on /filter (#20953)
Before this commit, composing multiple category filters with a query such as category:category1 and category:category2 would not return any results. This is because we were filtering for topics that belonged to both category1 and category2, which is impossible since a topic can only belong to a single category.

With this commit, specifying a query like category:category1 category:category2 will now translate to filtering for topics that belong to either the category1 or category2 category.
2023-04-05 07:16:37 +08:00
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