$ git clone -n https://gitee.com/zhoujiajia111/libslirp.git /var/lib/mock/dist-an23.3-build-440003-73067/root/chroot_tmpdir/scmroot/libslirp
Cloning into '/var/lib/mock/dist-an23.3-build-440003-73067/root/chroot_tmpdir/scmroot/libslirp'...
$ git fetch origin cb6106b40552360f0cb9e7217f45be8f36a43635:KOJI_FETCH_HEAD
From https://gitee.com/zhoujiajia111/libslirp
 * [new ref]         cb6106b40552360f0cb9e7217f45be8f36a43635 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cb6106b update libslirp.spec.