fixed sql

public/userarea/scadenzario/sql/3_import_scadenzario.sql

@@ -1,8 +1,11 @@
 START TRANSACTION;
 
-TRUNCATE scad_deadlines;
+DELETE FROM scad_deadline_attachments;
+DELETE FROM scad_deadlines;
+DELETE FROM scad_subjects;
 
-TRUNCATE scad_subjects;
+ALTER TABLE scad_deadlines AUTO_INCREMENT = 1;
+ALTER TABLE scad_subjects AUTO_INCREMENT = 1;
 
 INSERT INTO scad_subjects (name, color) VALUES ('Ambiente', '#198754') ON DUPLICATE KEY UPDATE color = VALUES(color);
 INSERT INTO scad_subjects (name, color) VALUES ('Manutenzioni', '#5a8fd8') ON DUPLICATE KEY UPDATE color = VALUES(color);