$ git clone -n https://gitee.com/src-opencloudos-rpms/gcc.git /var/lib/mock/dist-oc9-build-202477-80533/root/chroot_tmpdir/scmroot/gcc
Cloning into '/var/lib/mock/dist-oc9-build-202477-80533/root/chroot_tmpdir/scmroot/gcc'...
$ git fetch origin edf70f0e2420e4ae4c03e8a4ccc81423ae3ea6f1:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/gcc
 * [new ref]         edf70f0e2420e4ae4c03e8a4ccc81423ae3ea6f1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at edf70f0 import gcc-12.3.1.5-2.tl4