$ git clone -n https://src.fedoraproject.org/rpms/fedora-packager.git /var/lib/mock/f40-build-2285499-55678/root/chroot_tmpdir/scmroot/fedora-packager
Cloning into '/var/lib/mock/f40-build-2285499-55678/root/chroot_tmpdir/scmroot/fedora-packager'...
$ git fetch origin 55b98094c9dea06b1411e4c1d7254d29927ba18d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fedora-packager
 * [new ref]         55b98094c9dea06b1411e4c1d7254d29927ba18d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 55b9809 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild