$ git clone -n https://src.fedoraproject.org/rpms/python-git-changelog.git /var/lib/mock/f40-build-2634729-66026/root/chroot_tmpdir/scmroot/python-git-changelog
Cloning into '/var/lib/mock/f40-build-2634729-66026/root/chroot_tmpdir/scmroot/python-git-changelog'...
$ git fetch origin 5a19800a686078b5230367eb5dab4a8ed02b54c9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-git-changelog
 * [new ref]         5a19800a686078b5230367eb5dab4a8ed02b54c9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5a19800 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild