$ git clone -n https://src.fedoraproject.org/rpms/python-emcee.git /var/lib/mock/f38-build-side-42-init-devel-873653-28448/root/chroot_tmpdir/scmroot/python-emcee
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-873653-28448/root/chroot_tmpdir/scmroot/python-emcee'...
$ git fetch origin 18fdec7c4feba38945d07d2c9b6a9c670951b9e5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-emcee
 * [new ref]         18fdec7c4feba38945d07d2c9b6a9c670951b9e5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 18fdec7 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild