reset advanced options when appropriate

app/javascript/mastodon/reducers/compose.js

@@ -48,6 +48,9 @@ const initialState = Immutable.Map({
   suggestion_token: null,
   suggestions: Immutable.List(),
   me: null,
+  default_advanced_options: Immutable.Map({
+    do_not_federate: false
+  }),
   default_privacy: 'public',
   resetFileKey: Math.floor((Math.random() * 0x10000)),
   idempotencyKey: null,
@@ -71,6 +74,7 @@ function clearAll(state) {
     map.set('spoiler_text', '');
     map.set('is_submitting', false);
     map.set('in_reply_to', null);
+    map.set('advanced_options', state.get('default_advanced_options'));
     map.set('privacy', state.get('default_privacy'));
     map.set('sensitive', false);
     map.update('media_attachments', list => list.clear());
@@ -176,6 +180,7 @@ export default function compose(state = initialState, action) {
       map.set('in_reply_to', action.status.get('id'));
       map.set('text', statusToTextMentions(state, action.status));
       map.set('privacy', privacyPreference(action.status.get('visibility'), state.get('default_privacy')));
+      map.set('advanced_options', state.get('default_advanced_options'));
       map.set('focusDate', new Date());
       map.set('preselectDate', new Date());
       map.set('idempotencyKey', uuid());
@@ -195,6 +200,7 @@ export default function compose(state = initialState, action) {
       map.set('spoiler', false);
       map.set('spoiler_text', '');
       map.set('privacy', state.get('default_privacy'));
+      map.set('advanced_options', state.get('default_advanced_options'));
       map.set('idempotencyKey', uuid());
     });
   case COMPOSE_SUBMIT_REQUEST: