Currently, every time the Editor returns from editing the link in the Link Manager, the filters for the Link list are cleared.
Potential use case: the Editor is filtering the invalid links. They edit one of the links and they would expect to be redirected back to filtered list. Instead, they need to apply the filter every time the link is edited.

Steps to reproduce

1. Create new eZ Platform installation.
2. In the PlatformUI/AdminUI, navigate to Link Manager.
3. Filter the list, either by Status or using search box.
4. Click "Edit" button for one of the listed links.
5. Click either "Save" or "Discard changes".
6. You will be redirected back to the unfiltered list of links.