Fix related to MR 137 targeted to latest_deployed_develop.

hive/server/bridge_api/cursor.py

@@ -21,7 +21,7 @@ async def _get_post_id(db, author, permlink):
         INNER JOIN hive_accounts ha_a ON ha_a.id = hp.author_id
         INNER JOIN hive_permlink_data hpd_p ON hpd_p.id = hp.permlink_id
         WHERE ha_a.name = :author AND hpd_p.permlink = :permlink"""
-    post_id = await db.query_one(sql, a=author, p=permlink)
+    post_id = await db.query_one(sql, author=author, permlink=permlink)
     assert post_id, 'invalid author/permlink'
     return post_id