Odd items in Libraries subtree after Express.js installation

[v-k-i]

Libraries tree contains each second level dependency twice (one is ok, second is marked as missing) after installation of express.js via npm. Additionally the tree contains an item with current user folder while project folder and/or package.json do not contain any reference to that directory.

To reproduce:

1. Create new node.js project in Netbeans.
2. Press "Add libraries" in a context menu of the Libraries item in projects window and install express.
3. Unfold Libraries subtree to view list of dependencies. It contains express, username (that is a user folder item) and list of other dependencies. Almost each of them is duplicated as missing.

NodeJS Projects plugin Version: 2.28
Node.js v0.12.0.
OS: Windows 8.1 64 bit
Netbeans 8.0.2 (Build 201411181905) Java: 1.8.0_25