vanilla commands don't respect gamerule sendCommandFeedback false anymore (server console)

/title, /particle, /playsound - and possibly other commands - have stopped respecting the "gamerule sendCommandFeedback false" at the server console

How to reproduce:

1. Console: gamerule sendCommandFeedback false
2. Login
3. Run from console: title playername title test
4. You will get a response "Title command successfully executed" when in fact you would expect to see nothing at all like it used to be.

This used to work in ... I think it was 1.8.3 (or earlier)? It's important to me to not get those responses when sendCommandFeedback is set to false. It would be very cool to get this fixed.

Thanks.