Fix bug in ::activateItem
Fix bug in ::activateItem

Only destroy active item if it is not the same as the new item.
hellendag/atom,andrewleverette/atom,brumm/atom,florianb/atom,jordanbtucker/atom,t9md/atom,brettle/atom,chfritz/atom,johnhaley81/atom,AdrianVovk/substance-ide,svanharmelen/atom,alfredxing/atom,bolinfest/atom,kevinrenaers/atom,me-benni/atom,tjkr/atom,liuderchi/atom,bolinfest/atom,kandros/atom,rlugojr/atom,CraZySacX/atom,florianb/atom,bsmr-x-script/atom,ashneo76/atom,scippio/atom,andrewleverette/atom,t9md/atom,wiggzz/atom,scippio/atom,Austen-G/BlockBuilder,kevinrenaers/atom,daxlab/atom,liuderchi/atom,Austen-G/BlockBuilder,AlexxNica/atom,stinsonga/atom,AlexxNica/atom,Ingramz/atom,Austen-G/BlockBuilder,transcranial/atom,rlugojr/atom,dijs/atom,bj7/atom,helber/atom,ardeshirj/atom,Ingramz/atom,sotayamashita/atom,johnhaley81/atom,daxlab/atom,FIT-CSE2410-A-Bombs/atom,svanharmelen/atom,ardeshirj/atom,AlexxNica/atom,Arcanemagus/atom,alexandergmann/atom,helber/atom,dijs/atom,decaffeinate-examples/atom,alfredxing/atom,tjkr/atom,atom/atom,hellendag/atom,chfritz/atom,helber/atom,bolinfest/atom,andrewleverette/atom,xream/atom,alexandergmann/atom,ashneo76/atom,liuderchi/atom,Austen-G/BlockBuilder,PKRoma/atom,florianb/atom,Arcanemagus/atom,gontadu/atom,decaffeinate-examples/atom,brumm/atom,florianb/atom,florianb/atom,sotayamashita/atom,alfredxing/atom,xream/atom,FIT-CSE2410-A-Bombs/atom,bj7/atom,stinsonga/atom,FIT-CSE2410-A-Bombs/atom,atom/atom,jordanbtucker/atom,ashneo76/atom,svanharmelen/atom,jordanbtucker/atom,AdrianVovk/substance-ide,Arcanemagus/atom,xream/atom,rlugojr/atom,wiggzz/atom,brettle/atom,Mokolea/atom,kandros/atom,CraZySacX/atom,sotayamashita/atom,gontadu/atom,dijs/atom,chfritz/atom,kevinrenaers/atom,bsmr-x-script/atom,decaffeinate-examples/atom,t9md/atom,bsmr-x-script/atom,Austen-G/BlockBuilder,PKRoma/atom,transcranial/atom,scippio/atom,alexandergmann/atom,brettle/atom,stinsonga/atom,liuderchi/atom,ardeshirj/atom,kandros/atom,Mokolea/atom,me-benni/atom,Ingramz/atom,johnhaley81/atom,transcranial/atom,Mokolea/atom,AdrianVovk/substance-ide,tjkr/atom,bj7/atom,hellendag/atom,brumm/atom,stinsonga/atom,me-benni/atom,PKRoma/atom,wiggzz/atom,gontadu/atom,daxlab/atom,decaffeinate-examples/atom,atom/atom,Austen-G/BlockBuilder,CraZySacX/atom