add was_forced property to Release data object

Change-Id: I5cfb9df09b598bb677b365fc1581eb96dd9b7233
Signed-off-by: Doug Hellmann <doug@doughellmann.com>

openstack_releases/deliverable.py

@@ -266,13 +266,20 @@ class Release(object):
 
     def __init__(self, version, projects, data, deliv):
         self.version = version
-        self.deliv = weakref.proxy(deliv)
+        if deliv:
+            self.deliv = weakref.proxy(deliv)
+        else:
+            self.deliv = deliv
         self._data = data
         self._projects = {
             p['repo']: ReleaseProject(p['repo'], p['hash'], p, self)
             for p in projects
         }
 
+    @property
+    def was_forced(self):
+        return 'forced' in self._data.get('flags', set())
+
     @property
     def projects(self):
         return sorted(self._projects.values())