Don't do two copies of data on inplace operations unless it is non-contiguous and we really need to.
Don't do two copies of data on inplace operations unless it is
non-contiguous and we really need to.

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