Dereference and null the temporary "element_utf8" variable.
Dereference and null the temporary "element_utf8" variable.

To avoid a reference (memory) leak

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