It really is challenging for me to guess your intention. On one particular hand you're stating that both a and b are community (no leading underscore inside their names) so I ought to theoretically be allowed to entry/mutate (get/established) both of those. But Then you definitely specify an specific mutator https://smartworldeveloper.in/smart-world-69-gurgaon-redefining-urban-luxury-living-in-sector-69/