Reset folder state on cancelling sync ops

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

@@ -100,6 +100,9 @@ public interface DaoOperation {
     @Query("SELECT * FROM operation WHERE name = :name")
     List<EntityOperation> getOperations(String name);
 
+    @Query("SELECT * FROM operation WHERE account = :account AND name = :name")
+    List<EntityOperation> getOperations(long account, String name);
+
     @Query("SELECT * FROM operation WHERE id = :id")
     EntityOperation getOperation(long id);
 
@@ -139,7 +142,4 @@ public interface DaoOperation {
 
     @Query("DELETE FROM operation WHERE id = :id")
     int deleteOperation(long id);
-
-    @Query("DELETE FROM operation WHERE account = :account AND name = :name")
-    int deleteOperations(long account, String name);
 }

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

@@ -1522,8 +1522,14 @@ public class ServiceSynchronize extends ServiceBase implements SharedPreferences
                         boolean enabled = prefs.getBoolean("enabled", true);
                         int pollInterval = prefs.getInt("poll_interval", DEFAULT_POLL_INTERVAL);
                         if (!enabled || account.ondemand || (pollInterval > 0 && !account.poll_exempted)) {
-                            int syncs = db.operation().deleteOperations(account.id, EntityOperation.SYNC);
-                            Log.i(account.name + " cancelled syncs=" + syncs);
+                            List<EntityOperation> syncs = db.operation().getOperations(account.id, EntityOperation.SYNC);
+                            if (syncs != null) {
+                                for (EntityOperation op : syncs) {
+                                    db.folder().setFolderSyncState(op.folder, null);
+                                    db.operation().deleteOperation(op.id);
+                                }
+                                Log.i(account.name + " cancelled syncs=" + syncs.size());
+                            }
                         }
 
                         // Long back-off period, let device sleep