Merge pull request #845 from annttu/issue_776

Fix for load_plugins() called twice error with dnf

Author: moreati

ansible_mitogen/planner.py

@@ -321,6 +321,7 @@ def get_module_deps(self):
     ALWAYS_FORK_MODULES = frozenset([
         'dnf',  # issue #280; py-dnf/hawkey need therapy
         'firewalld',  # issue #570: ansible module_utils caches dbus conn
+        'ansible.legacy.dnf',  # issue #776
     ])
 
     def should_fork(self):