fix plugin restore: wallet_type

gui/qt/installwizard.py

@@ -538,6 +538,7 @@ class InstallWizard(QDialog):
                 wallet.create_main_account(password)
 
             else:
+                self.storage.put('wallet_type', t)
                 wallet = run_hook('installwizard_restore', self, self.storage)
                 if not wallet:
                     return

plugins/trezor.py

@@ -81,6 +81,8 @@ class Plugin(BasePlugin):
         wallet_types.append(('trezor', _("Trezor wallet"), TrezorWallet))
 
     def installwizard_restore(self, wizard, storage):
+        if storage.get('wallet_type') != 'trezor': 
+            return
         wallet = TrezorWallet(storage)
         try:
             wallet.create_main_account(None)