PluginContainer.tsx

Reviewed By: passy

Differential Revision: D17258340

fbshipit-source-id: 26ce421345f6152efe7da07daf649395e299af14

src/reducers/pluginStates.tsx

@@ -46,14 +46,14 @@ export default function reducer(
     return {...state};
   } else if (action.type === 'CLEAR_PLUGIN_STATE') {
     const {payload} = action;
-    return Object.keys(state).reduce((newState, pluginKey) => {
+    return Object.keys(state).reduce((newState: State, pluginKey) => {
       // Only add the pluginState, if its from a plugin other than the one that
       // was removed. pluginKeys are in the form of ${clientID}#${pluginID}.
       const clientId = pluginKey.slice(0, pluginKey.lastIndexOf('#'));
       const pluginId = pluginKey.split('#').pop();
       if (
         clientId !== payload.clientId ||
-        payload.devicePlugins.has(pluginId)
+        (pluginId && payload.devicePlugins.has(pluginId))
       ) {
         newState[pluginKey] = state[pluginKey];
       }