$ git clone -n https://gitee.com/src-opencloudos-rpms/glibc.git /var/lib/mock/dist-oc9-build-69894-47356/root/chroot_tmpdir/scmroot/glibc
Cloning into '/var/lib/mock/dist-oc9-build-69894-47356/root/chroot_tmpdir/scmroot/glibc'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/glibc
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a0ebe88 import glibc-2.38-5.tl4