fix: ignore falsy last_status (#2099)

Fixes #2097

src/routes/_actions/stream/processMessage.js

@@ -35,7 +35,10 @@ export function processMessage (instanceName, timelineName, message) {
       // reproduce what is done for statuses for the conversation.
       //
       // It will add new DMs as new conversations instead of updating existing threads
+      if (payload.last_status) {
+        // If the last_status doesn't exist, just ignore it. There's not much we can do in that case
         addStatusOrNotification(instanceName, timelineName, payload.last_status)
+      }
       break
     case 'filters_changed':
       emit('wordFiltersChanged', instanceName)

src/routes/_api/timelines.js

@@ -75,7 +75,7 @@ export async function getTimeline (instanceName, accessToken, timeline, maxId, s
   let { json: items, headers } = await getWithHeaders(url, auth(accessToken), { timeout: DEFAULT_TIMEOUT })
 
   if (timeline === 'direct') {
-    items = items.map(item => item.last_status)
+    items = items.map(item => item.last_status).filter(Boolean) // ignore falsy last_status'es
   }
   return { items, headers }
 }