$ git clone -n https://gitee.com/src-opencloudos-rpms/glibc.git /var/lib/mock/dist-oc8-build-100403-64562/root/chroot_tmpdir/scmroot/glibc
Cloning into '/var/lib/mock/dist-oc8-build-100403-64562/root/chroot_tmpdir/scmroot/glibc'...
$ git fetch origin b7e420d3ec5c7d451a4f1e7179182e3a2e010340:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/glibc
 * [new ref]         b7e420d3ec5c7d451a4f1e7179182e3a2e010340 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b7e420d import glibc-2.28-251.tl3.4.ap.1