$ git clone -n https://gitee.com/renbo02/gcc-toolset-13.git /var/lib/mock/dist-an8.9-build-339378-69768/root/chroot_tmpdir/scmroot/gcc-toolset-13
Cloning into '/var/lib/mock/dist-an8.9-build-339378-69768/root/chroot_tmpdir/scmroot/gcc-toolset-13'...
$ git fetch origin b03354bdcf0d88df3c1aa4599c553cb8cca083df:KOJI_FETCH_HEAD
From https://gitee.com/renbo02/gcc-toolset-13
 * [new ref]         b03354bdcf0d88df3c1aa4599c553cb8cca083df -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b03354b import gcc-toolset-13-13.0-2