$ git clone -n https://gitee.com/mgb01105731/gcc-toolset-15-gcc.git /var/lib/mock/dist-an23-build-537404-83058/root/chroot_tmpdir/scmroot/gcc-toolset-15-gcc
Cloning into '/var/lib/mock/dist-an23-build-537404-83058/root/chroot_tmpdir/scmroot/gcc-toolset-15-gcc'...
$ git fetch origin da94551edf0db56563e2d1e296954ee97b4d8449:KOJI_FETCH_HEAD
From https://gitee.com/mgb01105731/gcc-toolset-15-gcc
 * [new ref]         da94551edf0db56563e2d1e296954ee97b4d8449 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at da94551 Init