Support proper content-type in Delete & Redraft

app/javascript/flavours/glitch/reducers/compose.js

@@ -433,6 +433,7 @@ export default function compose(state = initialState, action) {
   case REDRAFT:
     return state.withMutations(map => {
       map.set('text', action.raw_text || unescapeHTML(expandMentions(action.status)));
+      map.set('content_type', action.content_type || 'text/plain');
       map.set('in_reply_to', action.status.get('in_reply_to_id'));
       map.set('privacy', action.status.get('visibility'));
       map.set('media_attachments', action.status.get('media_attachments'));