$ git clone -n https://src.fedoraproject.org/rpms/rust-sys-info.git /var/lib/mock/f38-build-side-42-init-devel-774315-27772/root/chroot_tmpdir/scmroot/rust-sys-info
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-774315-27772/root/chroot_tmpdir/scmroot/rust-sys-info'...
$ git fetch origin 7e663a8d738457d7713148b2e6200734e93f4042:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-sys-info
 * [new ref]         7e663a8d738457d7713148b2e6200734e93f4042 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7e663a8 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild