$ git clone -n https://src.fedoraproject.org/rpms/nfdump.git /var/lib/mock/f39-build-1495500-34544/root/chroot_tmpdir/scmroot/nfdump
Cloning into '/var/lib/mock/f39-build-1495500-34544/root/chroot_tmpdir/scmroot/nfdump'...
$ git fetch origin 32af71922c4ac1578145b7059edc417787b64c05:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nfdump
 * [new ref]         32af71922c4ac1578145b7059edc417787b64c05 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 32af719 nfdump: 1.7.3 release