added if else clause in fetchContext

So that if we get an error, then we will
only delete status if it is an 404 error

app/assets/javascripts/components/actions/statuses.jsx

@@ -103,8 +103,12 @@ export function fetchContext(id) {
       dispatch(fetchContextSuccess(id, response.data.ancestors, response.data.descendants));
       dispatch(fetchStatusCard(id));
     }).catch(error => {
+      if (error.response.status == 404){
         dispatch(deleteStatusSuccess(id));
         dispatch(deleteFromTimelines(id));
+      }else{
+        dispatch(fetchContextFail(id, error));
+      }
     });
   };
 };