Fix name of reversion field in new Tag table and add a test

data/model/test/test_tag.py

@@ -146,6 +146,7 @@ def assert_tags(repository, *args):
     oci_tag = _get_oci_tag(tag)
     assert oci_tag.name == tag.name
     assert not oci_tag.hidden
+    assert oci_tag.reversion == tag.reversion
 
     if tag.lifetime_end_ts:
       assert oci_tag.lifetime_end_ms == (tag.lifetime_end_ts * 1000)
@@ -156,6 +157,21 @@ def assert_tags(repository, *args):
     assert expected in tags_dict
 
 
+def test_create_reversion_tag(initialized_db):
+  repository = create_repository('devtable', 'somenewrepo', None)
+  manifest = Manifest.get()
+  image1 = find_create_or_link_image('foobarimage1', repository, None, {}, 'local_us')
+
+  footag = create_or_update_tag_for_repo(repository, 'foo', image1.docker_image_id,
+                                         oci_manifest=manifest, reversion=True)
+  assert footag.reversion
+
+  oci_tag = _get_oci_tag(footag)
+  assert oci_tag.name == footag.name
+  assert not oci_tag.hidden
+  assert oci_tag.reversion == footag.reversion
+
+
 def test_list_active_tags(initialized_db):
   # Create a new repository.
   repository = create_repository('devtable', 'somenewrepo', None)