asset mgt - early removal asset_id filter

account_asset_management/account_asset_invoice.py

@@ -88,6 +88,8 @@ class account_invoice_line(orm.Model):
             'account.asset.category', 'Asset Category'),
         'asset_id': fields.many2one(
             'account.asset.asset', 'Asset',
+            domain=[('type', '=', 'normal'),
+                    ('state', 'in', ['open', 'close'])],
             help="Complete this field when selling an asset "
                  "in order to facilitate the creation of the "
                  "asset removal accounting entries via the "