$ git clone -n https://src.fedoraproject.org/rpms/perl-MooseX-Role-Matcher.git /var/lib/mock/f40-build-2257077-54305/root/chroot_tmpdir/scmroot/perl-MooseX-Role-Matcher
Cloning into '/var/lib/mock/f40-build-2257077-54305/root/chroot_tmpdir/scmroot/perl-MooseX-Role-Matcher'...
$ git fetch origin f9a55acd72cd939e70d829156e0fab4783ed1504:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-MooseX-Role-Matcher
 * [new ref]         f9a55acd72cd939e70d829156e0fab4783ed1504 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f9a55ac Orphaned for 6+ weeks