fix link students on unregistered existing users
fix link students on unregistered existing users

KhanovaSkola/khanovaskola-v3,KhanovaSkola/khanovaskola-v3,KhanovaSkola/khanovaskola-v3,KhanovaSkola/khanovaskola-v3,KhanovaSkola/khanovaskola-v3,KhanovaSkola/khanovaskola-v3