Fixed incorrect subdomain check
Fixed incorrect subdomain check

refs https://github.com/TryGhost/Ghost/commit/2e81aa17fbbd054363cbc123c82c543bae93abf0

Incomplete push in the last commit with missing conditional check :/

TryGhost/Ghost,janvt/Ghost,janvt/Ghost,bitjson/Ghost,ErisDS/Ghost,e10/Ghost,ErisDS/Ghost,TryGhost/Ghost,ErisDS/Ghost,e10/Ghost,bitjson/Ghost,TryGhost/Ghost