make dict a copy to prevent pops from possibly talking back to input
make dict a copy to prevent pops from possibly talking back to input

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