Dialog becomes unusable after moving rapidly

[julaudo]

I'm submitting a ...

[X] bug report => Search github for a similar issue or PR before submitting
[ ] feature request => Please check if request is not on the roadmap already https://github.com/primefaces/primeng/wiki/Roadmap
[ ] support request => Please do not submit support request here, instead see http://forum.primefaces.org/viewforum.php?f=35

Plunkr Case (Bug Reports)
http://plnkr.co/edit/2CQQhZTmRuQDDwKCRPfW?p=preview

Current behavior
This is the official PrimeNG show case for Dialog (https://www.primefaces.org/primeng/#/dialog)
Click on "Show" to show the dialog. After moving the dialog to outside the parent (for example, over the chrome tab), the dialog keeps following the cursor event after releasing the mouse button. The dialog becomes unusable.

Expected behavior
When releasing the mouse button, the dialog should stop moving.

• Angular version: 4

• PrimeNG version: 5.2.0

• Browser: [all]

• Language: [all]

• Node (for AoT issues): node --version = v6.11.0

[julaudo]

I confirm it's not the bug I wanted to describe. I really couldn't release the dialog, but now I can't reproduce it

[asingh3886]

Yes. @julaudo is correct. I am facing the same issue.