$ git clone -n https://src.fedoraproject.org/rpms/rust-genetlink.git /var/lib/mock/f40-build-2100515-50467/root/chroot_tmpdir/scmroot/rust-genetlink
Cloning into '/var/lib/mock/f40-build-2100515-50467/root/chroot_tmpdir/scmroot/rust-genetlink'...
$ git fetch origin b9f311ceb94610d167c11ed75b6ce64fcb26bbc2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-genetlink
 * [new ref]         b9f311ceb94610d167c11ed75b6ce64fcb26bbc2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b9f311c Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild