$ git clone -n https://gitee.com/jgmu/omnispace-release.git /var/lib/mock/dist-an8.9-build-370536-71163/root/chroot_tmpdir/scmroot/omnispace-release
Cloning into '/var/lib/mock/dist-an8.9-build-370536-71163/root/chroot_tmpdir/scmroot/omnispace-release'...
$ git fetch origin 921e12310bd2c53df25eb7f7270e7db84643ef60:KOJI_FETCH_HEAD
From https://gitee.com/jgmu/omnispace-release
 * [new ref]         921e12310bd2c53df25eb7f7270e7db84643ef60 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 921e123 2 commit