$ git clone -n https://src.fedoraproject.org/rpms/nano.git /var/lib/mock/f42-build-side-1-3499050-45964/root/chroot_tmpdir/scmroot/nano
Cloning into '/var/lib/mock/f42-build-side-1-3499050-45964/root/chroot_tmpdir/scmroot/nano'...
$ git fetch origin 7cb431a87d6123106dacbcd72fb78b0cf2920914:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nano
 * [new ref]         7cb431a87d6123106dacbcd72fb78b0cf2920914 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7cb431a fix nano syntax highlighting in default nanorc