$ git clone -n https://gitee.com/src-opencloudos-rpms/ccache.git /var/lib/mock/dist-oc9-build-126744-76271/root/chroot_tmpdir/scmroot/ccache
Cloning into '/var/lib/mock/dist-oc9-build-126744-76271/root/chroot_tmpdir/scmroot/ccache'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/ccache
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b462be6 import ccache-4.7.3-7.tl4