Revert to always requiring at least two columns when guessing
Revert to always requiring at least two columns when guessing

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