$ git clone -n https://src.fedoraproject.org/rpms/rust-stderrlog.git /var/lib/mock/f40-build-2653903-66904/root/chroot_tmpdir/scmroot/rust-stderrlog
Cloning into '/var/lib/mock/f40-build-2653903-66904/root/chroot_tmpdir/scmroot/rust-stderrlog'...
$ git fetch origin 74b64c51e5be7fe8a8fe210f3960c60316994447:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-stderrlog
 * [new ref]         74b64c51e5be7fe8a8fe210f3960c60316994447 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 74b64c5 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild