Why is ctx->rni_count added twice in one occurrence？

Created by: iwishguo

https://github.com/ARM-software/SCP-firmware/blob/c5c09d704a02152d5ac61f2a21f6eafe61b86cd9/module/cmn_rhodes/src/mod_cmn_rhodes.c#L223

The above code seems strange. Is it dedicated to do so or a code bug?

Thanks, Heyi