$ git clone -n https://gitee.com/mgb01105731/gcc-toolset-15-binutils.git /var/lib/mock/dist-an23-build-536397-82470/root/chroot_tmpdir/scmroot/gcc-toolset-15-binutils
Cloning into '/var/lib/mock/dist-an23-build-536397-82470/root/chroot_tmpdir/scmroot/gcc-toolset-15-binutils'...
$ git fetch origin 199ebf2021fb01a8e3539d090dd68e46a044fc54:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/gcc-toolset-15-binutils
 * [new ref]         199ebf2021fb01a8e3539d090dd68e46a044fc54 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 199ebf2 Init