$ git clone -n https://src.fedoraproject.org/rpms/polkit.git /var/lib/mock/f40-build-788927-135460/root/chroot_tmpdir/scmroot/polkit
Cloning into '/var/lib/mock/f40-build-788927-135460/root/chroot_tmpdir/scmroot/polkit'...
$ git fetch origin 7e610fb9c414df937236edb1bced8158b11b3b67:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/polkit
 * [new ref]         7e610fb9c414df937236edb1bced8158b11b3b67 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7e610fb Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild