$ git clone -n https://gitee.com/mgb01105731/gcc-toolset-15-annobin.git /var/lib/mock/dist-an23-build-534311-81523/root/chroot_tmpdir/scmroot/gcc-toolset-15-annobin
Cloning into '/var/lib/mock/dist-an23-build-534311-81523/root/chroot_tmpdir/scmroot/gcc-toolset-15-annobin'...
$ git fetch origin b30d3932990118f28bf1c78ab56a5348315bcde7:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/gcc-toolset-15-annobin
 * [new ref]         b30d3932990118f28bf1c78ab56a5348315bcde7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b30d393 Init