$ git clone -n https://src.fedoraproject.org/rpms/rust-safemem.git /var/lib/mock/f38-build-side-43-rust-devel-1418034-31459/root/chroot_tmpdir/scmroot/rust-safemem
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1418034-31459/root/chroot_tmpdir/scmroot/rust-safemem'...
$ git fetch origin 7fbde70fa68ac0b45573e694bc5db8b077fb0164:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-safemem
 * [new ref]         7fbde70fa68ac0b45573e694bc5db8b077fb0164 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7fbde70 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild