404 on path wich contains base prefix

Problem/Motivation

My prefix is /myprefix, but i also have an entity with path /myprefix-something/{myprefix_something}.
With virtual_base enabled, path /myprefix-something/{myprefix_something} return 404 but should not.

Digging in Drupal, at some point, the kernel try to resolve route for -something/{myprefix_something}.

May be virtual_base replace myprefix at some point, even if it's not the base root.