$ git clone -n https://src.fedoraproject.org/rpms/polkit-kde.git /var/lib/mock/f40-build-2023848-46940/root/chroot_tmpdir/scmroot/polkit-kde
Cloning into '/var/lib/mock/f40-build-2023848-46940/root/chroot_tmpdir/scmroot/polkit-kde'...
$ git fetch origin 860b2e2d3b3388b8b87e9b0b85a89389e57248e9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/polkit-kde
 * [new ref]         860b2e2d3b3388b8b87e9b0b85a89389e57248e9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 860b2e2 fix: upload missing sources