Fixed resetting folder types

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

@@ -69,11 +69,6 @@ public interface DaoFolder {
             " GROUP BY folder.id")
     LiveData<List<TupleFolderEx>> liveFolders(Long account);
 
-    @Query("SELECT * FROM folder" +
-            " WHERE (:account < 0 OR folder.account = :account)" +
-            " AND type <> '" + EntityFolder.USER + "'")
-    LiveData<List<EntityFolder>> liveSystemFolders(long account);
-
     @Query("SELECT folder.*, account.name AS accountName, account.color AS accountColor, account.state AS accountState" +
             ", COUNT(message.id) AS messages" +
             ", SUM(CASE WHEN message.content = 1 THEN 1 ELSE 0 END) AS content" +
@@ -170,6 +165,7 @@ public interface DaoFolder {
     @Query("UPDATE folder" +
             " SET type = '" + EntityFolder.USER + "'" +
             " WHERE account = :account" +
+            " AND type <> '" + EntityFolder.INBOX + "'" +
             " AND type <> '" + EntityFolder.SYSTEM + "'")
     int setFoldersUser(long account);
 

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

@@ -116,14 +116,14 @@ public class EntityFolder implements Serializable {
             "Flagged"
     );
     private static final List<String> SYSTEM_FOLDER_TYPE = Arrays.asList(
-            ARCHIVE,
+            ARCHIVE, // All
             ARCHIVE,
             DRAFTS,
             TRASH,
             JUNK,
             SENT,
-            SYSTEM,
-            SYSTEM
+            SYSTEM, // Important
+            SYSTEM // Flagged
     ); // MUST match SYSTEM_FOLDER_ATTR
 
     static final List<String> FOLDER_SORT_ORDER = Arrays.asList(

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

@@ -2218,7 +2218,7 @@ public class ServiceSynchronize extends LifecycleService {
                         folder.account = account.id;
                         folder.name = fullName;
                         folder.display = display;
-                        folder.type = EntityFolder.USER;
+                        folder.type = (EntityFolder.SYSTEM.equals(type) ? type : EntityFolder.USER);
                         folder.level = level;
                         folder.synchronize = false;
                         folder.poll = ("imap.gmail.com".equals(account.host));