Moving code from one package to another doesn't update dependencies

[JFixby]

Reproduction steps:

Example project: https://github.com/JFixby/DartImportsExample

class B located in the project_a/lib/folderB1/class_b_file.dart

class D2 located in the project_d/lib/class_d2_depends_on_b.dart
content:

import 'package:project_a/folderB1/class_b_file.dart'; // 
class D2 {
  B instanceOfB = new B();
}

What was done

move folderB1/class_b_file.dart from project_a to project_b

What is expected

D2 updates import to the import 'package:project_b/folderB1/class_b_file.dart'; //

What is actually happening

no update, still depends on the old project

has to do it manually for each dependent file

Setup

IDEA version: community 2017.2
Dart plugin: 172.3317.48