Rehearsal letters encompassed within multi rest

Good morning, I wonder if anyone can explain how I might force Dorico to split multi-rests at rehearsal letters. Many thanks.

It should split by default, this looks bugged somehow.

This isn’t a problem I’ve faced, because I always add a double barline under a rehearsal mark. I wonder if you might consider doing the same?

I realise that the bigger questions here are:

  1. Could there be an Engraving Option introduced whereby adding a rehearsal mark also adds a double barline?
  2. Could there be an Engraving Option introduced whereby Rehearsal Marks split multirests? edit: they do, except when it’s a dodgy XML import. This question s probably redundant!

It was as I was posting my question I realised that it might be something to do with the score’s origins as a xml file. Deleting and re-entering the Rehearsal letters puts everything right.