$ git clone -n https://gitee.com/src-opencloudos-rpms/gcc.git /var/lib/mock/dist-oc9-build-247834-83629/root/chroot_tmpdir/scmroot/gcc
Cloning into '/var/lib/mock/dist-oc9-build-247834-83629/root/chroot_tmpdir/scmroot/gcc'...
$ git fetch origin 138b0a929d9ee7bfb688652945919ae3b130da58:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/gcc
 * [new ref]         138b0a929d9ee7bfb688652945919ae3b130da58 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 138b0a9 import gcc-12.3.1.8-7.tl4