$ git clone -n https://src.fedoraproject.org/rpms/rshim.git /var/lib/mock/f40-build-2638885-66328/root/chroot_tmpdir/scmroot/rshim
Cloning into '/var/lib/mock/f40-build-2638885-66328/root/chroot_tmpdir/scmroot/rshim'...
$ git fetch origin 5cb96269758d8eff35cef43cddbc9d4cdf07ab40:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rshim
 * [new ref]         5cb96269758d8eff35cef43cddbc9d4cdf07ab40 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5cb9626 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild