$ git clone -n https://src.fedoraproject.org/rpms/polkit-gnome.git /var/lib/mock/f40-build-798646-141994/root/chroot_tmpdir/scmroot/polkit-gnome
Cloning into '/var/lib/mock/f40-build-798646-141994/root/chroot_tmpdir/scmroot/polkit-gnome'...
$ git fetch origin 354a050875f7729a89de4b56c672b55ba5825e1c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/polkit-gnome
 * [new ref]         354a050875f7729a89de4b56c672b55ba5825e1c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 354a050 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild