$ git clone -n https://src.fedoraproject.org/rpms/earcut-hpp.git /var/lib/mock/f45-build-7981-372/root/chroot_tmpdir/scmroot/earcut-hpp
Cloning into '/var/lib/mock/f45-build-7981-372/root/chroot_tmpdir/scmroot/earcut-hpp'...
$ git fetch origin c00e2a744ebf1573c81d76a057365be8574d5a74:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/earcut-hpp
 * [new ref]         c00e2a744ebf1573c81d76a057365be8574d5a74 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c00e2a7 Patch for degenerate edges