$ git clone -n https://src.fedoraproject.org/rpms/rust-md5.git /var/lib/mock/f40-build-2653068-66898/root/chroot_tmpdir/scmroot/rust-md5
Cloning into '/var/lib/mock/f40-build-2653068-66898/root/chroot_tmpdir/scmroot/rust-md5'...
$ git fetch origin dc8a2efcf3552cc11652e733bbe0e31433815b1b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-md5
 * [new ref]         dc8a2efcf3552cc11652e733bbe0e31433815b1b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dc8a2ef Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild