RepoConfigLoader: initialize missing_repo_names

diff --git a/pym/portage/repository/config.py b/pym/portage/repository/config.py
index 925a67852ffd6c278915aa19589d9b3b3761830e..de1e7bc59c6e5959d511814ace30a9d43e63c460 100644 (file)
--- a/pym/portage/repository/config.py
+++ b/pym/portage/repository/config.py
@@ -524,6 +524,7 @@ class RepoConfigLoader(object):
                        self.treemap = {}
                        self._prepos_changed = True
                        self._repo_location_list = ()
+                       self.missing_repo_names = frozenset()
                        return
 
                # If PORTDIR_OVERLAY contains a repo with the same repo_name as