$ git clone -n https://src.fedoraproject.org/rpms/python-zstandard.git /var/lib/mock/f39-build-1554336-37051/root/chroot_tmpdir/scmroot/python-zstandard
Cloning into '/var/lib/mock/f39-build-1554336-37051/root/chroot_tmpdir/scmroot/python-zstandard'...
$ git fetch origin 480421d897f2a0050d70dcef35a12a6d4719b910:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-zstandard
 * [new ref]         480421d897f2a0050d70dcef35a12a6d4719b910 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 480421d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild