@@ -0,0 +1,534 @@
+from django.db import models, migrations%0A%0Adef set_updated(apps, schema_editor):%0A    Proposal = apps.get_model(%22proposal%22, %22Proposal%22)%0A    db_alias = schema_editor.connection.alias%0A    proposals = Proposal.objects.using(db_alias).all()%0A%0A    for prop in proposals:%0A        prop.updated = prop.modified%0A        prop.save()%0A%0Adef noop(_, __):%0A    pass%0A%0Aclass Migration(migrations.Migration):%0A    dependencies = %5B%0A        (%22proposal%22, %220024_proposal_updated%22)%0A    %5D%0A%0A    operations = %5B%0A        migrations.RunPython(set_updated, noop)%0A    %5D%0A

Use 'modified' field as default for 'updated'