Improved folder flags update

app/src/main/java/eu/faircode/email/ServiceSynchronize.java

@@ -845,11 +845,7 @@ public class ServiceSynchronize extends LifecycleService {
 
                         db.folder().setFolderState(folder.id, "connected");
                         db.folder().setFolderError(folder.id, null);
-
-                        List<String> keywords = new ArrayList<>();
-                        for (String keyword : ifolder.getPermanentFlags().getUserFlags())
-                            keywords.add(keyword);
-                        db.folder().setFolderKeywords(folder.id, DB.Converters.fromStringArray(keywords.toArray(new String[0])));
+                        db.folder().setFolderKeywords(folder.id, DB.Converters.fromStringArray(ifolder.getPermanentFlags().getUserFlags()));
 
                         Log.i(Helper.TAG, account.name + " folder " + folder.name + " flags=" + ifolder.getPermanentFlags());
 
@@ -1516,6 +1512,8 @@ public class ServiceSynchronize extends LifecycleService {
         } else
             keywords.remove(keyword);
         db.message().setMessageKeywords(message.id, DB.Converters.fromStringArray(keywords.toArray(new String[0])));
+
+        db.folder().setFolderKeywords(folder.id, DB.Converters.fromStringArray(ifolder.getPermanentFlags().getUserFlags()));
     }
 
     private void doAdd(EntityFolder folder, Session isession, IMAPFolder ifolder, EntityMessage message, JSONArray jargs, DB db) throws MessagingException, JSONException, IOException {