Much better Tag.calculate_related.
Much better Tag.calculate_related.

--HG--
extra : rebase_source : ddc6d9b2eac5ed11a7f782d9b37e16e2d2afb8c8

nanaya/moebooru,nanaya/moebooru,moebooru/moebooru,nanaya/moebooru,moebooru/moebooru,euank/moebooru-thin,euank/moebooru-thin,moebooru/moebooru,moebooru/moebooru,euank/moebooru-thin,euank/moebooru-thin,nanaya/moebooru,euank/moebooru-thin,moebooru/moebooru,nanaya/moebooru