In link picker, pressing enter for search closes the dialog if a document is selected.

This situation occurs when the link field that the picker is opened from contains a value, or when the picker is configured to pre-select the document that was picked the previous time.

Pressing enter on search closes the dialog, returning the pre-selected document as value to the field. If the magnifying glass is clicked instead, the search results are displayed correctly.

Curiously, the image picker behaves correctly in both cases...

Could it be that the search box in the link picker handles the enter correctly (it seems to start a search... the dialog does not close immediately) but that the event is picked up by the dialog too? 

This behaviour occurs on 12.6, 13.0 and 13.2