added null check on for tag, to prevent any issues with old encrypted values
added null check on for tag, to prevent any issues with old encrypted values

bytestream/framework,stevebauman/framework,crynobone/framework,hafezdivandari/framework,leo108/laravel_framework,leo108/laravel_framework,JamesForks/framework,mul14/laravel-framework,mul14/laravel-framework,arturock/framework,morrislaptop/framework,driesvints/framework,mul14/laravel-framework,dwightwatson/framework,crynobone/framework,stevebauman/framework,samlev/framework,arturock/framework,notebowl/laravel-framework,morrislaptop/framework,lucasmichot/framework,dwightwatson/framework,arturock/framework,samlev/framework,bytestream/framework,hafezdivandari/framework,driesvints/framework,JamesForks/framework,notebowl/laravel-framework,lucasmichot/framework,laravel/framework,mul14/laravel-framework,laravel/framework