$ git clone -n https://gitee.com/gcdota930915/gcc-toolset-10-autoconf.git /var/lib/mock/dist-an23.2-gcc-toolset-10-build-399512-72351/root/chroot_tmpdir/scmroot/gcc-toolset-10-autoconf
Cloning into '/var/lib/mock/dist-an23.2-gcc-toolset-10-build-399512-72351/root/chroot_tmpdir/scmroot/gcc-toolset-10-autoconf'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/gcdota930915/gcc-toolset-10-autoconf
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4dd8d2e init gcc-toolset-10-autoconf