$ git clone -n http://git.inferitos.ru/rpms/py3c /var/lib/mock/inferit-10_0-bootstrap-build-95652-181467/root/chroot_tmpdir/scmroot/py3c
Cloning into '/var/lib/mock/inferit-10_0-bootstrap-build-95652-181467/root/chroot_tmpdir/scmroot/py3c'...
$ git fetch origin changed/i10c-beta/py3c-1.4-10.el10:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/py3c
 * [new tag]         changed/i10c-beta/py3c-1.4-10.el10 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef3cf0e import py3c-1.4-10.el10