Wizard: do not show validation error on parent module

idea/idea-new-project-wizard/src/org/jetbrains/kotlin/tools/projectWizard/wizard/ui/secondStep/modulesEditor/ModulesEditorTree.kt

@@ -140,7 +140,9 @@ private class CellRenderer(private val context: Context, renderErrors: Boolean)
             if (renderErrors) {
                 if (setting is Module) context.read {
                     val validationResult = setting.validator.validate(this, setting)
-                    setError(validationResult as? ValidationResult.ValidationError)
+                    val error = validationResult.safeAs<ValidationResult.ValidationError>()
+                        ?.takeIf { it.target === setting }
+                    setError(error)
                 } else {
                     setError(null)
                 }