$ git clone -n https://src.fedoraproject.org/rpms/openvpn-otp.git /var/lib/mock/f39-build-1509725-35451/root/chroot_tmpdir/scmroot/openvpn-otp
Cloning into '/var/lib/mock/f39-build-1509725-35451/root/chroot_tmpdir/scmroot/openvpn-otp'...
$ git fetch origin 68a882527a94cac1a1112ee5adec0b773a27c68a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openvpn-otp
 * [new ref]         68a882527a94cac1a1112ee5adec0b773a27c68a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 68a8825 Initial import (fedora#2231209).