docs: add reference to the root issue

Author: ldez

pkg/golinters/unused/unused.go

@@ -90,11 +90,13 @@ func getUnusedResults(pass *analysis.Pass, settings *config.UnusedSettings) unus
 	opts := unused.Options{
 		FieldWritesAreUses:     settings.FieldWritesAreUses,
 		PostStatementsAreReads: settings.PostStatementsAreReads,
-		ExportedIsUsed:         true,
-		ExportedFieldsAreUsed:  settings.ExportedFieldsAreUsed,
-		ParametersAreUsed:      settings.ParametersAreUsed,
-		LocalVariablesAreUsed:  settings.LocalVariablesAreUsed,
-		GeneratedIsUsed:        settings.GeneratedIsUsed,
+		// Related to https://github.com/golangci/golangci-lint/issues/4218
+		// https://github.com/dominikh/go-tools/issues/1474#issuecomment-1850760813
+		ExportedIsUsed:        true,
+		ExportedFieldsAreUsed: settings.ExportedFieldsAreUsed,
+		ParametersAreUsed:     settings.ParametersAreUsed,
+		LocalVariablesAreUsed: settings.LocalVariablesAreUsed,
+		GeneratedIsUsed:       settings.GeneratedIsUsed,
 	}
 
 	// ref: https://github.com/dominikh/go-tools/blob/4ec1f474ca6c0feb8e10a8fcca4ab95f5b5b9881/internal/cmd/unused/unused.go#L68