Add test for not warning with hierarch
Add test for not warning with hierarch

saimn/astropy,astropy/astropy,lpsinger/astropy,StuartLittlefair/astropy,pllim/astropy,pllim/astropy,mhvk/astropy,StuartLittlefair/astropy,astropy/astropy,mhvk/astropy,astropy/astropy,astropy/astropy,larrybradley/astropy,lpsinger/astropy,lpsinger/astropy,mhvk/astropy,StuartLittlefair/astropy,astropy/astropy,pllim/astropy,larrybradley/astropy,lpsinger/astropy,mhvk/astropy,StuartLittlefair/astropy,StuartLittlefair/astropy,aleksandr-bakanov/astropy,aleksandr-bakanov/astropy,saimn/astropy,aleksandr-bakanov/astropy,aleksandr-bakanov/astropy,saimn/astropy,pllim/astropy,saimn/astropy,larrybradley/astropy,lpsinger/astropy,saimn/astropy,pllim/astropy,mhvk/astropy,larrybradley/astropy,larrybradley/astropy