$ git clone -n https://gitee.com/src-opencloudos-rpms/krb5.git /var/lib/mock/dist-oc9-build-230391-81457/root/chroot_tmpdir/scmroot/krb5
Cloning into '/var/lib/mock/dist-oc9-build-230391-81457/root/chroot_tmpdir/scmroot/krb5'...
$ git fetch origin 6b7924305a346bec0071515f4b006621c5cd1e79:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/krb5
 * [new ref]         6b7924305a346bec0071515f4b006621c5cd1e79 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6b79243 import krb5-1.21.2-8.tl4