xbmc/xbmc — pull request #3889 by jmarshallnz (2013-12-22 01:50:01+00:00)
Title: [sorting] don't apply airdate when sorting by year if airdate is empty.

Fixes #14276.

@Montellese: anything I'm missing (alternate would be to not fill the field in ToSortable, given we null check for it).