$ git clone -n https://src.fedoraproject.org/rpms/incus.git /var/lib/mock/f42-build-side-1-3533269-46361/root/chroot_tmpdir/scmroot/incus
Cloning into '/var/lib/mock/f42-build-side-1-3533269-46361/root/chroot_tmpdir/scmroot/incus'...
$ git fetch origin 3455b910ddee6731e21d976390d730676380a526:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/incus
 * [new ref]         3455b910ddee6731e21d976390d730676380a526 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3455b91 Add changelog entry