policies/api: fix target returning pbm_uuid instead of proper primary key of the object

passbook/policies/migrations/0003_auto_20200908_1542.py

@@ -0,0 +1,25 @@
+# Generated by Django 3.1.1 on 2020-09-08 15:42
+
+import django.db.models.deletion
+from django.db import migrations
+
+import passbook.lib.models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("passbook_policies", "0002_auto_20200528_1647"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="policybinding",
+            name="target",
+            field=passbook.lib.models.InheritanceForeignKey(
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name="+",
+                to="passbook_policies.policybindingmodel",
+            ),
+        ),
+    ]