Comments: Ensure the proper comment count and pages for unapproved comments.

Previiously, unapproved comments can alter the comment count, returning incorrect page numbers.

Fixes #8973.

Props GregMulhauser, dd32, ryan, mrmist, hakre, solarissmoke, billerickson, ericlewis, SergeyBiryukov, chriscct7, dossy, lukecavanagh, renggo888, jdorner, matjack1, pento, audrasjb, imath, davidbaumwald, whyisjake.  


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