$ git clone -n https://src.fedoraproject.org/rpms/ntpsec.git /var/lib/mock/f42-build-side-1-3589347-46957/root/chroot_tmpdir/scmroot/ntpsec
Cloning into '/var/lib/mock/f42-build-side-1-3589347-46957/root/chroot_tmpdir/scmroot/ntpsec'...
$ git fetch origin 3e2b5054161a2f7f79ae62339985a1efb2d276d8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ntpsec
 * [new ref]         3e2b5054161a2f7f79ae62339985a1efb2d276d8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3e2b505 1.2.4-1