Change default value in reducer

components/toast_wrapper/toast_wrapper.jsx

@@ -115,7 +115,7 @@ class ToastWrapper extends React.PureComponent {
  componentDidMount() {
  this.mounted = true;
  const {showUnreadToast, showNewMessagesToast, showMessageHistoryToast} = this.state;
- const toastPresent = showUnreadToast || showNewMessagesToast || showMessageHistoryToast;
+ const toastPresent = Boolean(showUnreadToast || showNewMessagesToast || showMessageHistoryToast);
  document.addEventListener('keydown', this.handleShortcut);
  this.props.actions.updateToastStatus(toastPresent);
  }

reducers/views/channel.js

@@ -139,7 +139,7 @@ function lastGetPosts(state = {}, action) {
  }
 }
 
-function toastStatus(state = {}, action) {
+function toastStatus(state = false, action) {
  switch (action.type) {
  case ActionTypes.SELECT_CHANNEL_WITH_MEMBER:
  return false;