Fix add_provider_to_user method bug.
Fix add_provider_to_user method bug.

Sology/sorcery,ikhakoo/sorcery,athix/sorcery,Sorcery/sorcery,Borzik/sorcery,jerefrer/sorcery,jshum/sorcery,trustyknave/sorcery,kristianmandrup/sorcery,athix/sorcery,creepycheese/sorcery,NoamB/sorcery,alexanderedge/sorcery,webgago/sorcery,ikhakoo/sorcery,trustyknave/sorcery,rubenmoya/sorcery,wendy0402/sorcery,jerefrer/sorcery,wasabia/bnbtripSorcery,Sorcery/sorcery,wendy0402/sorcery,wasabia/bnbtripSorcery,kristianmandrup/sorcery,rubenmoya/sorcery,Sology/sorcery,creepycheese/sorcery,webgago/sorcery,alexanderedge/sorcery,Borzik/sorcery,NoamB/sorcery,jshum/sorcery,Sorcery/sorcery,athix/sorcery