$ git clone -n https://src.fedoraproject.org/rpms/perl-threads.git /var/lib/mock/f45-build-27757-625/root/chroot_tmpdir/scmroot/perl-threads
Cloning into '/var/lib/mock/f45-build-27757-625/root/chroot_tmpdir/scmroot/perl-threads'...
$ git fetch origin 0a20a5801b43535e14d6cbb3ffc30a3914c757cc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-threads
 * [new ref]         0a20a5801b43535e14d6cbb3ffc30a3914c757cc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0a20a58 Increase release to favour standalone package