Collection Item Revision: dissalow blank for the current field.

django_etesync/migrations/0018_auto_20200226_1803.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.0.3 on 2020-02-26 18:03
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('django_etesync', '0017_auto_20200226_1455'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='collectionitemrevision',
+            name='current',
+            field=models.BooleanField(db_index=True, default=True, null=True),
+        ),
+    ]

django_etesync/models.py

@@ -80,7 +80,7 @@ class CollectionItemRevision(models.Model):
     item = models.ForeignKey(CollectionItem, related_name='revisions', on_delete=models.CASCADE)
     chunks = models.ManyToManyField(CollectionItemChunk, related_name='items')
     hmac = models.CharField(max_length=50, blank=False, null=False)
-    current = models.BooleanField(db_index=True, default=True, blank=True, null=True)
+    current = models.BooleanField(db_index=True, default=True, null=True)
     deleted = models.BooleanField(default=False)
 
     class Meta: