$ git clone -n https://src.fedoraproject.org/rpms/polkit-kde.git /var/lib/mock/f40-build-2518718-61736/root/chroot_tmpdir/scmroot/polkit-kde
Cloning into '/var/lib/mock/f40-build-2518718-61736/root/chroot_tmpdir/scmroot/polkit-kde'...
$ git fetch origin 16e042e585da54892562ec91256f6cac2fb4c1bb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/polkit-kde
 * [new ref]         16e042e585da54892562ec91256f6cac2fb4c1bb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 16e042e 6.0.1