storage upgrade: don't run older upgrade methods on newer version storage

lib/storage.py

@@ -339,6 +339,9 @@ class WalletStorage(PrintError):
         self.write()
 
     def convert_wallet_type(self):
+        if not self._is_upgrade_method_needed(0, 13):
+            return
+
         wallet_type = self.get('wallet_type')
         if wallet_type == 'btchip': wallet_type = 'ledger'
         if self.get('keystore') or self.get('x1/') or wallet_type=='imported':
@@ -522,6 +525,9 @@ class WalletStorage(PrintError):
         self.put('seed_version', 16)
 
     def convert_imported(self):
+        if not self._is_upgrade_method_needed(0, 13):
+            return
+
         # '/x' is the internal ID for imported accounts
         d = self.get('accounts', {}).get('/x', {}).get('imported',{})
         if not d:
@@ -548,6 +554,9 @@ class WalletStorage(PrintError):
             raise BaseException('no addresses or privkeys')
 
     def convert_account(self):
+        if not self._is_upgrade_method_needed(0, 13):
+            return
+
         self.put('accounts', None)
 
     def _is_upgrade_method_needed(self, min_version, max_version):