$ git clone -n https://gitee.com/mgb01105731/gcc_1.git /var/lib/mock/dist-an23-build-362262-71197/root/chroot_tmpdir/scmroot/gcc_1
Cloning into '/var/lib/mock/dist-an23-build-362262-71197/root/chroot_tmpdir/scmroot/gcc_1'...
$ git fetch origin 55a4aee9724a9549d1d6aef0d364bdf1b2cf51ec:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/gcc_1
 * [new ref]         55a4aee9724a9549d1d6aef0d364bdf1b2cf51ec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 55a4aee update to 12.3.0 and skip loongarch