$ git clone -n https://gitee.com/src-opencloudos-rpms/ed25519-java.git /var/lib/mock/dist-oc9-build-69740-47330/root/chroot_tmpdir/scmroot/ed25519-java
Cloning into '/var/lib/mock/dist-oc9-build-69740-47330/root/chroot_tmpdir/scmroot/ed25519-java'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/ed25519-java
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 22f3533 import ed25519-java-0.3.0-3.tl4