$ git clone -n https://src.fedoraproject.org/rpms/nagios-plugins.git /var/lib/mock/f41-build-side-1-2821409-33215/root/chroot_tmpdir/scmroot/nagios-plugins
Cloning into '/var/lib/mock/f41-build-side-1-2821409-33215/root/chroot_tmpdir/scmroot/nagios-plugins'...
$ git fetch origin 945c8d852f60a5a3db7424480afd85fcb7c46b82:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nagios-plugins
 * [new ref]         945c8d852f60a5a3db7424480afd85fcb7c46b82 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 945c8d8 convert GPLv3+ license to SPDX