wallet: close storage DB after create/restore

do not trigger synchronize from adb events,
because it may access the DB once it has been closed.

Author: ecdsa

electrum/wallet.py

@@ -614,8 +614,7 @@ def clear_tx_parents_cache(self):
     async def on_event_adb_set_up_to_date(self, adb):
         if self.adb != adb:
             return
-        num_new_addrs = await run_in_thread(self.synchronize)
-        up_to_date = self.adb.is_up_to_date() and num_new_addrs == 0
+        up_to_date = self.adb.is_up_to_date()
         with self.lock:
             status_changed = self._up_to_date != up_to_date
             self._up_to_date = up_to_date
@@ -4448,7 +4447,7 @@ def create_new_wallet(
     if not encrypt_file:
         msg += "\nWarning: wallet file not encrypted. Lightning keys will not be encrypted on disk"
     wallet.save_db()
-    #storage.close()
+    storage.close()
     return {'seed': seed, 'wallet': wallet, 'msg': msg}
 
 
@@ -4526,5 +4525,5 @@ def restore_wallet_from_text(
     if not encrypt_file:
         msg += "\nWarning: wallet file not encrypted. Lightning keys will not be encrypted on disk."
     wallet.save_db()
-    #storage.close()
+    storage.close()
     return {'wallet': wallet, 'msg': msg}