$ git clone -n http://git.inferitos.ru/rpms/Box2D /var/lib/mock/inferit-10_0-extras-build-83584-154715/root/chroot_tmpdir/scmroot/Box2D
Cloning into '/var/lib/mock/inferit-10_0-extras-build-83584-154715/root/chroot_tmpdir/scmroot/Box2D'...
$ git fetch origin changed/i10cf/Box2D-2.4.2-1.el10:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/Box2D
 * [new tag]         changed/i10cf/Box2D-2.4.2-1.el10 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 920a605 import Box2D-2.4.2-1.el10