$ git clone -n https://src.fedoraproject.org/rpms/rust-rd-hashd.git /var/lib/mock/f40-build-2137956-50831/root/chroot_tmpdir/scmroot/rust-rd-hashd
Cloning into '/var/lib/mock/f40-build-2137956-50831/root/chroot_tmpdir/scmroot/rust-rd-hashd'...
$ git fetch origin 6ed5dc85bb4de5259397b9a4ffc132e824419a9e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rd-hashd
 * [new ref]         6ed5dc85bb4de5259397b9a4ffc132e824419a9e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6ed5dc8 Fix builds with Rust 1.73+ caused by ambiguous <number>::div_ceil calls