Enforce cls coercion only after calling the io reader.
Enforce cls coercion only after calling the io reader.

bsipocz/astropy,funbaker/astropy,aleksandr-bakanov/astropy,stargaser/astropy,dhomeier/astropy,aleksandr-bakanov/astropy,astropy/astropy,aleksandr-bakanov/astropy,pllim/astropy,AustereCuriosity/astropy,pllim/astropy,saimn/astropy,astropy/astropy,stargaser/astropy,saimn/astropy,astropy/astropy,funbaker/astropy,StuartLittlefair/astropy,pllim/astropy,bsipocz/astropy,StuartLittlefair/astropy,stargaser/astropy,saimn/astropy,bsipocz/astropy,bsipocz/astropy,AustereCuriosity/astropy,dhomeier/astropy,aleksandr-bakanov/astropy,saimn/astropy,funbaker/astropy,mhvk/astropy,mhvk/astropy,larrybradley/astropy,DougBurke/astropy,AustereCuriosity/astropy,larrybradley/astropy,astropy/astropy,funbaker/astropy,MSeifert04/astropy,AustereCuriosity/astropy,lpsinger/astropy,MSeifert04/astropy,MSeifert04/astropy,dhomeier/astropy,larrybradley/astropy,mhvk/astropy,lpsinger/astropy,larrybradley/astropy,dhomeier/astropy,DougBurke/astropy,DougBurke/astropy,lpsinger/astropy,saimn/astropy,mhvk/astropy,StuartLittlefair/astropy,lpsinger/astropy,StuartLittlefair/astropy,lpsinger/astropy,larrybradley/astropy,pllim/astropy,DougBurke/astropy,mhvk/astropy,MSeifert04/astropy,StuartLittlefair/astropy,dhomeier/astropy,AustereCuriosity/astropy,stargaser/astropy,pllim/astropy,astropy/astropy