$ git clone -n http://git.inferitos.ru/rpms/kernel /var/lib/mock/inferit-8_8-bootstrap-build-el8_9-29354-50513/root/chroot_tmpdir/scmroot/kernel
Cloning into '/var/lib/mock/inferit-8_8-bootstrap-build-el8_9-29354-50513/root/chroot_tmpdir/scmroot/kernel'...
$ git fetch origin changed/i8/kernel-4.18.0-513.9.1.el8_9:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/kernel
 * [new tag]         changed/i8/kernel-4.18.0-513.9.1.el8_9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f37f0d8 Added source