`next` command just before `debugger do:` method

[ko1]

(same as until and fin)

debugger do: 'p 1'
p 1

Stopping at the line 1, type next and it doesn't stop at the line 2.

This is because debugger do: method entering the new subsession and it cancels next command stepping feature, and continue just after p 1 debug command.

It is clearly a bug but now I have no good solution, so I left this ticket.