Get all IMAP folder user flags

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

@@ -848,8 +848,7 @@ public class ServiceSynchronize extends LifecycleService {
 
                         List<String> keywords = new ArrayList<>();
                         for (String keyword : ifolder.getPermanentFlags().getUserFlags())
-                            if (!keyword.startsWith("$"))
+                            keywords.add(keyword);
-                                keywords.add(keyword);
                         db.folder().setFolderKeywords(folder.id, DB.Converters.fromStringArray(keywords.toArray(new String[0])));
 
                         Log.i(Helper.TAG, account.name + " folder " + folder.name + " flags=" + ifolder.getPermanentFlags());