Why is the clef in the middle of :|: barline?

I am trying to notate a hand coordination exercise:
Do you know how to put the clef to the right of the :|: barline?
hands_together.dorico (607.0 KB)

It’s not very satisfactory, but you can do this:

The clef is attached to the second eighth note in the bar following the start repeat barline, and then the spacing is fixed via the note spacing tool in Engrave mode.

hands_together.dorico (556.3 KB)

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Or you could use percussion clef? If it is a rhythm exercise?