fix: keep comments redux store on logout.

This diff fixes a bug where comments were cleared from the redux store
on logout which shouldn't be the case as the comments are public
information and should be displayed without an active user session.

src/reducers/models/comments.js

@@ -226,7 +226,6 @@ const comments = (state = DEFAULT_STATE, action) =>
             }
             return state;
           },
-          [act.RECEIVE_LOGOUT]: () => DEFAULT_STATE,
           [act.RECEIVE_CMS_LOGOUT]: () => DEFAULT_STATE
         }[action.type] || (() => state)
       )();