change get to exist in team_members.go:114

pkg/models/team_members.go

@@ -111,7 +111,7 @@ func (tm *TeamMember) Delete(s *xorm.Session, _ web.Auth) (err error) {
 func (tm *TeamMember) CheckMembership(s *xorm.Session) (exists bool, err error) {
 	exists, err = s.
 		Where("team_id = ? AND user_id = ?", tm.TeamID, tm.UserID).
-		Get(&TeamMember{})
+		Exist(&TeamMember{})
 	return exists, err
 }