fix joining a group by invitation code procedure
fix joining a group by invitation code procedure

alex-ionochkin/koding,sinan/koding,andrewjcasal/koding,drewsetski/koding,mertaytore/koding,rjeczalik/koding,usirin/koding,kwagdy/koding-1,drewsetski/koding,mertaytore/koding,andrewjcasal/koding,drewsetski/koding,alex-ionochkin/koding,sinan/koding,koding/koding,cihangir/koding,gokmen/koding,cihangir/koding,usirin/koding,koding/koding,szkl/koding,jack89129/koding,jack89129/koding,gokmen/koding,acbodine/koding,kwagdy/koding-1,cihangir/koding,szkl/koding,drewsetski/koding,szkl/koding,gokmen/koding,sinan/koding,mertaytore/koding,rjeczalik/koding,rjeczalik/koding,sinan/koding,szkl/koding,rjeczalik/koding,koding/koding,sinan/koding,jack89129/koding,acbodine/koding,kwagdy/koding-1,alex-ionochkin/koding,cihangir/koding,mertaytore/koding,acbodine/koding,andrewjcasal/koding,usirin/koding,rjeczalik/koding,andrewjcasal/koding,szkl/koding,andrewjcasal/koding,kwagdy/koding-1,acbodine/koding,usirin/koding,alex-ionochkin/koding,alex-ionochkin/koding,rjeczalik/koding,drewsetski/koding,gokmen/koding,koding/koding,andrewjcasal/koding,usirin/koding,cihangir/koding,usirin/koding,acbodine/koding,jack89129/koding,acbodine/koding,gokmen/koding,acbodine/koding,mertaytore/koding,koding/koding,cihangir/koding,kwagdy/koding-1,mertaytore/koding,jack89129/koding,gokmen/koding,szkl/koding,drewsetski/koding,cihangir/koding,sinan/koding,drewsetski/koding,szkl/koding,alex-ionochkin/koding,szkl/koding,drewsetski/koding,mertaytore/koding,mertaytore/koding,cihangir/koding,koding/koding,acbodine/koding,jack89129/koding,kwagdy/koding-1,koding/koding,andrewjcasal/koding,alex-ionochkin/koding,alex-ionochkin/koding,sinan/koding,usirin/koding,koding/koding,rjeczalik/koding,gokmen/koding,gokmen/koding,andrewjcasal/koding,usirin/koding,jack89129/koding,sinan/koding,kwagdy/koding-1,rjeczalik/koding,jack89129/koding,kwagdy/koding-1