$ git clone -n https://gitee.com/wenyuzifang/PackageKit.git /var/lib/mock/dist-an23-build-450905-73466/root/chroot_tmpdir/scmroot/PackageKit
Cloning into '/var/lib/mock/dist-an23-build-450905-73466/root/chroot_tmpdir/scmroot/PackageKit'...
$ git fetch origin cb61e3e34f9ea879479ff3565707f67be579575b:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/PackageKit
 * [new ref]         cb61e3e34f9ea879479ff3565707f67be579575b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cb61e3e Update code from upstream