$ git clone -n https://src.fedoraproject.org/rpms/3proxy.git /var/lib/mock/f40-build-793182-138800/root/chroot_tmpdir/scmroot/3proxy
Cloning into '/var/lib/mock/f40-build-793182-138800/root/chroot_tmpdir/scmroot/3proxy'...
$ git fetch origin 1fd8dd0b77dac903bedfbb856a2e5b50a64389a4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/3proxy
 * [new ref]         1fd8dd0b77dac903bedfbb856a2e5b50a64389a4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1fd8dd0 Fix failing builds with *_poll build patch (3proxy-0.9.4-poll-build.patch)