The customer observed that links attached to a text in RichText field are unstable. After revisiting popup for creating new links the currently attached ones are removed.

Steps to reproduce:
1. Create a new content e.g. article
2. Type some text in RichText field
3. Highlight some text and add a new link using UDW ("Select content" button)
4. Click on newly created link once again
5. Click outside pop-up for creating links

Result: previously attached link is gone.

Note: this issue only applies to "Select content" button. Links which are typed or pasted directly into the input won't break after following mentioned steps.