$ git clone -n https://gitee.com/src-opencloudos-rpms/shim.git /var/lib/mock/dist-oc8-build-73020-48492/root/chroot_tmpdir/scmroot/shim
Cloning into '/var/lib/mock/dist-oc8-build-73020-48492/root/chroot_tmpdir/scmroot/shim'...
$ git fetch origin 562e12e6245c18e8fa57b976545d9f2c312f27d5:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/shim
 * [new ref]         562e12e6245c18e8fa57b976545d9f2c312f27d5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 562e12e import shim-15.8-4.tl3.1