$ git clone -n https://gitee.com/rabbitali/flatpak.git /var/lib/mock/dist-an23-build-490571-74493/root/chroot_tmpdir/scmroot/flatpak
Cloning into '/var/lib/mock/dist-an23-build-490571-74493/root/chroot_tmpdir/scmroot/flatpak'...
$ git fetch origin 5638848b68bbd372869a1e2fac68f8fdaff0145e:KOJI_FETCH_HEAD
From https://gitee.com/rabbitali/flatpak
 * [new ref]         5638848b68bbd372869a1e2fac68f8fdaff0145e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5638848 Update code from upstream