$ git clone -n https://src.fedoraproject.org/rpms/cppcheck.git /var/lib/mock/f42-build-side-1-3502168-45977/root/chroot_tmpdir/scmroot/cppcheck
Cloning into '/var/lib/mock/f42-build-side-1-3502168-45977/root/chroot_tmpdir/scmroot/cppcheck'...
$ git fetch origin d03d6f9c46210154225927459a82bb795a020c65:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cppcheck
 * [new ref]         d03d6f9c46210154225927459a82bb795a020c65 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d03d6f9 2.17.1