fully deterministic mentions order

hive/db/sql_scripts/update_hive_posts_mentions.sql

@@ -30,7 +30,7 @@ BEGIN
       )T( id_post, mention, author_id, block_num )
     )T( id_post, mention, author_id, block_num ) ON ha.name = T.mention
     WHERE ha.id != T.author_id
-    ORDER BY T.id_post
+    ORDER BY T.block_num, T.id_post, ha.id
   ON CONFLICT DO NOTHING;
 
 END

tests_api @ a67fd2e5

-Subproject commit ee534480e5739b75968089859ee3663dfdabb126
+Subproject commit a67fd2e56ecf35b254d5f901767802524fe6f39e