$ git clone -n https://src.fedoraproject.org/rpms/python-ast-monitor.git /var/lib/mock/f42-build-side-1-3566308-46733/root/chroot_tmpdir/scmroot/python-ast-monitor
Cloning into '/var/lib/mock/f42-build-side-1-3566308-46733/root/chroot_tmpdir/scmroot/python-ast-monitor'...
$ git fetch origin 29c8e6159fff50a7a270c347effb8d6777b3f5ec:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-ast-monitor
 * [new ref]         29c8e6159fff50a7a270c347effb8d6777b3f5ec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 29c8e61 Update Packit config