Fixed #22906 -- Added a more helpful repr to migrations' ModelState.

Thanks Collin Anderson for the report and original patch.

1 files changed, 3 insertions, 0 deletions

diff --git a/django/db/migrations/state.py b/django/db/migrations/state.py
index 69bfbb2ab2..d27e5013b7 100644
--- a/django/db/migrations/state.py
+++ b/django/db/migrations/state.py
@@ -300,6 +300,9 @@ class ModelState(object):
                 return field
         raise ValueError("No field called %s on model %s" % (name, self.name))
 
+    def __repr__(self):
+        return "<ModelState: '%s.%s'>" % (self.app_label, self.name)
+
     def __eq__(self, other):
         return (
             (self.app_label == other.app_label) and