$ git clone -n https://src.fedoraproject.org/rpms/rust-safemem.git /var/lib/mock/f40-build-2657943-66917/root/chroot_tmpdir/scmroot/rust-safemem
Cloning into '/var/lib/mock/f40-build-2657943-66917/root/chroot_tmpdir/scmroot/rust-safemem'...
$ git fetch origin f7b42bc0a417744180c69300847457b316236f67:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-safemem
 * [new ref]         f7b42bc0a417744180c69300847457b316236f67 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f7b42bc Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild