$ git clone -n https://gitee.com/src-opencloudos-rpms/pcre.git /var/lib/mock/dist-oc9-build-121296-71610/root/chroot_tmpdir/scmroot/pcre
Cloning into '/var/lib/mock/dist-oc9-build-121296-71610/root/chroot_tmpdir/scmroot/pcre'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/pcre
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 03b1212 import pcre-8.45-8.tl4