$ git clone -n http://git.inferitos.ru/rpms/frr /var/lib/mock/inferit-9_3-updates-build-28730-48577/root/chroot_tmpdir/scmroot/frr
Cloning into '/var/lib/mock/inferit-9_3-updates-build-28730-48577/root/chroot_tmpdir/scmroot/frr'...
$ git fetch origin changed/i9c/frr-8.3.1-11.el9_3.1:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/frr
 * [new tag]         changed/i9c/frr-8.3.1-11.el9_3.1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3ac5013 import frr-8.3.1-11.el9_3.1