$ git clone -n https://gitee.com/shirley0901/grub2_2.git /var/lib/mock/dist-an23-build-463917-73869/root/chroot_tmpdir/scmroot/grub2_2
Cloning into '/var/lib/mock/dist-an23-build-463917-73869/root/chroot_tmpdir/scmroot/grub2_2'...
$ git fetch origin 1d3fa5a4338e4f5b087e6a9c62d21bc42aced384:KOJI_FETCH_HEAD
From https://gitee.com/shirley0901/grub2_2
 * [new ref]         1d3fa5a4338e4f5b087e6a9c62d21bc42aced384 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1d3fa5a Add SW64 arch support