$ git clone -n https://gitee.com/opencloudos-stream/ghc-call-stack.git /var/lib/mock/dist-oc9-epol-build-90980-59137/root/chroot_tmpdir/scmroot/ghc-call-stack
Cloning into '/var/lib/mock/dist-oc9-epol-build-90980-59137/root/chroot_tmpdir/scmroot/ghc-call-stack'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/ghc-call-stack
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 46568d7 package init