Add test for #3904
Add test for #3904

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