review requested pull request filter not working properly

[martinsbalodis]

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Bug

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Just now review requested search filter started glitching. It is showing pull requests that have been recently merged or reviewed. A merged pull request should disappear from this search.

Steps to reproduce:

1. visit https://github.com/pulls/review-requested
2. merge a pr or review a pr
3. the pr doesn't disappear from https://github.com/pulls/review-requested

[stianjensen]

I think this was probably a temporary issue. Haven't seen this pop up recently at least.