IgnoredReturnValue false positives

[yogurtearl]

Expected Behavior

Using RxJava 2.2.19

Observable.just(...)
            .take(1)
            .map {...
            }
           .kotlinExtensionMethod()
          .subscribe({... }, {...})

Should be no IgnoredReturnValue detekted becase we use the results of take and map

Observed Behavior

This triggered IgnoredReturnValue on take and map

Context

We have to disable this rule as a workaround.

Your Environment

• Version of detekt used: 1.12.0
• Version of Gradle used (if applicable): 6.6.1 (with Android)
• Operating System and version: macOS 10.15

[vladimirfx]

Same issue with chained method call:

    assertThat(debt.devicesDebts)
        .extracting(Function<DevicesDebts, Instant?> { it.sentDate })
        .containsOnlyNulls()

Here extracting(..) is marked with @CheckReturnValue but containsOnlyNulls() is not. So value returned by extracting(..) is consumed.