$ git clone -n https://gitee.com/fundawang/polkit.git /var/lib/mock/dist-an23-build-290804-64987/root/chroot_tmpdir/scmroot/polkit
Cloning into '/var/lib/mock/dist-an23-build-290804-64987/root/chroot_tmpdir/scmroot/polkit'...
$ git fetch origin 0759f6ce9160ef6a0691f23616ea35179265d057:KOJI_FETCH_HEAD
From https://gitee.com/fundawang/polkit
 * [new ref]         0759f6ce9160ef6a0691f23616ea35179265d057 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0759f6c 123