Redux bug fixes (#6243)

* Fix save teams dispatch

* Fix login when MFA is enabled but not active

* Fix JS error caused by using deleted team member

webapp/actions/user_actions.jsx

@@ -631,7 +631,7 @@ export function checkMfa(loginId, success, error) {
 
     checkMfaRedux(loginId)(dispatch, getState).then(
         (data) => {
-            if (data && success) {
+            if (data != null && success) {
                 success(data);
             } else if (data == null && error) {
                 const serverError = getState().requests.users.checkMfa.error;

webapp/components/team_sidebar/team_sidebar_controller.jsx

@@ -102,6 +102,9 @@ export default class TeamSidebar extends React.Component {
         for (const index in this.state.teamMembers) {
             if (this.state.teamMembers.hasOwnProperty(index)) {
                 const teamMember = this.state.teamMembers[index];
+                if (teamMember.delete_at > 0) {
+                    continue;
+                }
                 const teamId = teamMember.team_id;
                 myTeams.push(Object.assign({
                     unread: teamMember.msg_count > 0,

webapp/stores/team_store.jsx

@@ -185,12 +185,14 @@ class TeamStoreClass extends EventEmitter {
     }
 
     saveTeam(team) {
-        this.saveTeams([team]);
+        const teams = {};
+        teams[team.id] = team;
+        this.saveTeams(teams);
     }
 
     saveTeams(teams) {
         store.dispatch({
-            type: TeamTypes.RECEIVED_TEAMS_LIST,
+            type: TeamTypes.RECEIVED_TEAMS,
             data: teams
         });
     }