! fix #3373 use instance of instead for isset
! fix #3373 use instance of instead for isset

Spuds/Elkarte,Spuds/Elkarte,interlab/Elkarte,emanuele45/Dialogo,elkarte/Elkarte,StealthWombat/How-to-fork-an-Elk,Spuds/Elkarte,elkarte/Elkarte,StealthWombat/How-to-fork-an-Elk,interlab/Elkarte,emanuele45/Dialogo,interlab/Elkarte,StealthWombat/How-to-fork-an-Elk,StealthWombat/How-to-fork-an-Elk,emanuele45/Dialogo,elkarte/Elkarte