We now show a small warning icon when a relationship has pending edits in the relationship editor, but nothing is shown in the link editor if a URL relationship has pending edits. We should probably show the same icon there (by each specific relationship under the link).

We don't show at the moment if the entity itself in the relationship has open edits, but we should probably still show something for URLs when the URL itself is being edited (not sure off the top of my head if there are other changes other than a URL string edit that can mark the URL entity itself as having editsPending?).

Original description was:
When changing the type of a URL relationship it is highlighted in yellow. But when the URL itself is changed there is no highlighting.