$ git clone -n https://gitee.com/little-huaduo/clang18.git /var/lib/mock/dist-an23-build-481270-74252/root/chroot_tmpdir/scmroot/clang18
Cloning into '/var/lib/mock/dist-an23-build-481270-74252/root/chroot_tmpdir/scmroot/clang18'...
$ git fetch origin ac5398db6f2af44331c187db70a885f6356eb371:KOJI_FETCH_HEAD
From https://gitee.com/little-huaduo/clang18
 * [new ref]         ac5398db6f2af44331c187db70a885f6356eb371 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ac5398d Add Sw64 target support for clang18