$ git clone -n https://src.fedoraproject.org/rpms/iwyu.git /var/lib/mock/f38-build-718468-96737/root/chroot_tmpdir/scmroot/iwyu
Cloning into '/var/lib/mock/f38-build-718468-96737/root/chroot_tmpdir/scmroot/iwyu'...
$ git reset --hard 8e98d187a58e201796f9d9af0d8e5ecf142f8d9e
HEAD is now at 8e98d18 Set required LLVM version.