$ git clone -n https://src.fedoraproject.org/rpms/python-sphinx-last-updated-by-git.git /var/lib/mock/f40-build-2090089-50219/root/chroot_tmpdir/scmroot/python-sphinx-last-updated-by-git
Cloning into '/var/lib/mock/f40-build-2090089-50219/root/chroot_tmpdir/scmroot/python-sphinx-last-updated-by-git'...
$ git fetch origin 74c51029146458cd9b452693e8f7670808110588:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-sphinx-last-updated-by-git
 * [new ref]         74c51029146458cd9b452693e8f7670808110588 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 74c5102 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild