add regression test for 4082
add regression test for 4082

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