$ git clone -n https://src.fedoraproject.org/rpms/rust-uu_unlink.git /var/lib/mock/f40-build-781148-131430/root/chroot_tmpdir/scmroot/rust-uu_unlink
Cloning into '/var/lib/mock/f40-build-781148-131430/root/chroot_tmpdir/scmroot/rust-uu_unlink'...
$ git fetch origin 3d92f5a8b8f5aee2331eebbcc4d83d04735c614d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-uu_unlink
 * [new ref]         3d92f5a8b8f5aee2331eebbcc4d83d04735c614d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3d92f5a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild