Merge branch 'jt/revert-revert-36091-jt/lookup-table-smart-sync' into jt/lookup-fixture-bug-fix

Author: Jtang-1

corehq/blobs/models.py

@@ -67,7 +67,8 @@ class Meta:
         unique_together = [
             # HACK work around unique=True implies db_index=True
             # https://code.djangoproject.com/ticket/24082
-            # Avoid extra varchar_pattern_ops index
+            # Avoid extra varchar_pattern_ops index while still maintaining
+            # an index for exact matches. We don't need varchar_pattern_ops
             # since we do not do LIKE queries on these
             # https://stackoverflow.com/a/50926644/10840
             ("key",),