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kotlinlang

Hello everybody, when I pass to a fragment from another fragment, the previous fragment is visible. What is the reason?  The height of all fragments are match_parent and background colors are different.
```val compFragment = CompFragment()
 compFragment.arguments = bundle
 requireFragmentManager().beginTransaction().replace(R.id.comp_item, compFragment)
     .commit()```


Clearly the :not-kotlin: reaction isn't working. Do you have trouble reading?