$ git clone -n https://src.fedoraproject.org/rpms/perl-Convert-Binary-C.git /var/lib/mock/f41-build-856761-167773/root/chroot_tmpdir/scmroot/perl-Convert-Binary-C
Cloning into '/var/lib/mock/f41-build-856761-167773/root/chroot_tmpdir/scmroot/perl-Convert-Binary-C'...
$ git fetch origin 6b9f4f09f6c0a579afdd63080d787905af534d9c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Convert-Binary-C
 * [new ref]         6b9f4f09f6c0a579afdd63080d787905af534d9c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6b9f4f0 0.85 bump (rhbz#2315937); Package tests