Only add extension if it's an instance of ExtensionInterface
Only add extension if it's an instance of ExtensionInterface

rossriley/bolt,romulo1984/bolt,rarila/bolt,GawainLynch/bolt,nikgo/bolt,joshuan/bolt,HonzaMikula/masivnipostele,joshuan/bolt,joshuan/bolt,cdowdy/bolt,bolt/bolt,joshuan/bolt,Raistlfiren/bolt,romulo1984/bolt,Raistlfiren/bolt,cdowdy/bolt,electrolinux/bolt,CarsonF/bolt,Intendit/bolt,cdowdy/bolt,electrolinux/bolt,rossriley/bolt,HonzaMikula/masivnipostele,GawainLynch/bolt,rossriley/bolt,Intendit/bolt,lenvanessen/bolt,Intendit/bolt,electrolinux/bolt,Raistlfiren/bolt,bolt/bolt,nikgo/bolt,GawainLynch/bolt,Intendit/bolt,rarila/bolt,GawainLynch/bolt,Raistlfiren/bolt,HonzaMikula/masivnipostele,nikgo/bolt,rossriley/bolt,rarila/bolt,bolt/bolt,HonzaMikula/masivnipostele,cdowdy/bolt,CarsonF/bolt,CarsonF/bolt,bolt/bolt,nikgo/bolt,electrolinux/bolt,lenvanessen/bolt,lenvanessen/bolt,rarila/bolt,romulo1984/bolt,romulo1984/bolt,lenvanessen/bolt,CarsonF/bolt