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Hi there, thanks for the PR!

This is a non-strict comparison operator, which means that it will also return true if the response code is a string "1".

Please note that get_comments_number() does in fact return the number of comments as a numeric string, not an integer (unless the post does not exist), so 1 === get_comments_number() won't work as expected.

The correct comparison would be '1' === get_comments_number(), see r55420 for example.

Merged in r55849.