Reset operation states on boot

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

@@ -127,6 +127,9 @@ public interface DaoOperation {
     @Query("UPDATE operation SET state = :state WHERE id = :id")
     int setOperationState(long id, String state);
 
+    @Query("UPDATE operation SET state = NULL")
+    int resetOperationStates();
+
     @Query("UPDATE operation SET error = :error WHERE id = :id")
     int setOperationError(long id, String error);
 

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

@@ -1678,6 +1678,9 @@ public class ServiceSynchronize extends ServiceBase implements SharedPreferences
                             db.folder().setFolderSyncState(folder.id, null);
                         }
 
+                        // Reset operations
+                        db.operation().resetOperationStates();
+
                         // Restore notifications
                         db.message().clearNotifyingMessages();