$ git clone -n https://gitee.com/src-opencloudos-rpms/exec-maven-plugin.git /var/lib/mock/dist-oc9-build-49932-14595/root/chroot_tmpdir/scmroot/exec-maven-plugin
Cloning into '/var/lib/mock/dist-oc9-build-49932-14595/root/chroot_tmpdir/scmroot/exec-maven-plugin'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/exec-maven-plugin
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e5d5400 import exec-maven-plugin-3.1.0-2.tl4