Restrict nullstring replacement to float columns
Restrict nullstring replacement to float columns

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