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kotlinlang

Hi, i got really weird error inside android studio 4.0.1 with kotlin 1.4.10. I am not sure if it bug from android lint and where i should report it. In the example below code works normally but android linter return error with message `Error: Expected non-nullable value [NullSafeMutableLiveData] androidSingleEvent.value = validationError`.
Probably some lint check from library `androidx.lifecycle:lifecycle-*:2.3.0-alpha07` is invalid.
Funfact: when i change `validationError` to `(validationError)` linter passes without problem.


```

class TestClass {
    val androidSingleEvent = MutableLiveData&lt;String&gt;()

    fun test() {
        val nullableText = getNullableText(true)
        if (nullableText != null) {
            androidSingleEvent.value = nullableText
        }
    }

    private fun getNullableText(returnNull: Boolean): String? {
        return if (returnNull) {
            null
        } else {
            ""
        }
    }
}```

Please file a bug against Lifecycle <https://issuetracker.google.com/issues/new?component=413132&amp;template=1096619|https://issuetracker.google.com/issues/new?component=413132&amp;template=1096619>