$ git clone -n https://src.fedoraproject.org/rpms/rust-users.git /var/lib/mock/f40-build-2644336-66501/root/chroot_tmpdir/scmroot/rust-users
Cloning into '/var/lib/mock/f40-build-2644336-66501/root/chroot_tmpdir/scmroot/rust-users'...
$ git fetch origin 381dc3057c13061d125c168d78d44dbe90bd852b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-users
 * [new ref]         381dc3057c13061d125c168d78d44dbe90bd852b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 381dc30 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild