Open popup link does not work when the current URL has a query string

Problem/Motivation

1. Steps to reproduce:
2. Configure a popup group on the node article full form display
3. Create an article node
4. Visit the content admin overview
5. Click on the Edit link (this will set a destination query string parameter)
6. Click on the open popup link

Expected behavior: the popup link is opened
Actual behavior: the popup link is opened but the link is followed, thus leading the user to a new page where the popup is closed.

Proposed resolution

Make sure that any query string parameter is retained when generating the popup link.

Remaining tasks

• Validate the proposed solution
• Reviews

User interface changes

None

API changes

None

Data model changes

None