Problem with una corda marking

When I mark a passage in piano una corda it automatically adds the tre corde at the end, which I don’t want. Since they are both part of the same chain I can delete the tre corde. Is there a workaround or will I have to white it out with a blank graphic?

P.S. those should be separate autonomous markings.

Select “Una corda” open the properties panels, click “restorative text” and leave it blank.
Also, if you want this to be global, go to engraving options (ctrl-schift-e), go to the Pedal lines menu, scroll down to "Una corda, and select “None” for continuation

Thanks Claude, that did the trick, but I still think they should be separate by default.