Fix migration for MOW (bug 1145377)
Fix migration for MOW (bug 1145377)

Our db in dev/prod/stage/some local envs expects unsigned for FKs
to tags and translations even if the models don't match :(

mozilla/zamboni,tsl143/zamboni,tsl143/zamboni,kumar303/zamboni,ingenioustechie/zamboni,mozilla/zamboni,diox/zamboni,kumar303/zamboni,mozilla/zamboni,mozilla/zamboni,Jobava/zamboni,Hitechverma/zamboni,washort/zamboni,eviljeff/zamboni,elysium001/zamboni,eviljeff/zamboni,clouserw/zamboni,washort/zamboni,shahbaz17/zamboni,Jobava/zamboni,ayushagrawal288/zamboni,ddurst/zamboni,ddurst/zamboni,eviljeff/zamboni,luckylavish/zamboni,Jobava/zamboni,diox/zamboni,mstriemer/zamboni,clouserw/zamboni,jasonthomas/zamboni,kumar303/zamboni,kumar303/zamboni,jasonthomas/zamboni,eviljeff/zamboni,ayushagrawal288/zamboni,mudithkr/zamboni,ayushagrawal288/zamboni,ayushagrawal288/zamboni,Hitechverma/zamboni,jamesthechamp/zamboni,ddurst/zamboni,ingenioustechie/zamboni,clouserw/zamboni,mstriemer/zamboni,jasonthomas/zamboni,Jobava/zamboni,jasonthomas/zamboni,Hitechverma/zamboni,jamesthechamp/zamboni,shahbaz17/zamboni,mudithkr/zamboni,jamesthechamp/zamboni,jamesthechamp/zamboni,washort/zamboni,clouserw/zamboni,elysium001/zamboni,ingenioustechie/zamboni,mudithkr/zamboni,tsl143/zamboni,mstriemer/zamboni,shahbaz17/zamboni,luckylavish/zamboni,tsl143/zamboni,luckylavish/zamboni,ddurst/zamboni,elysium001/zamboni,diox/zamboni,mstriemer/zamboni,shahbaz17/zamboni,elysium001/zamboni,luckylavish/zamboni,washort/zamboni,mudithkr/zamboni,ingenioustechie/zamboni,diox/zamboni,Hitechverma/zamboni