So not a bug, thank you!

What did you do?
- Placed two inserters that insert onto a splitter from behind with an output priority set.

What happened?
- The output priority is ignored.

What did you expect to happen instead?
- The splitter should follow its normal output priority behavior.

Does it happen always, once, or ...

Instead of "enable/ disable" the option "set filter" could be more usefull in this case.