Can you test with git master branch and see if it works for your case? I had no option to test something like that here.
While it does work with the early in-dialog NOTIFY messages, my BLF tests are suddenly failing. Looking at the SQL queries, it looks for a tag in the `b_tag` column, but in the value it is looking for is in the `a_tag` column. Not really sure yet what is going on there, but just so you know I'm looking into it.