Created attachment 280042 [details]
What steps will reproduce the problem?
1) Open attachment document in Safari 9.1 or newer.
2) Drag & drop second link to place right next to it.
What is the expected result?
Second link should be hovered.
What happens instead?
First link is hovered.
I can reproduce, both in shipping WebKit and in a nightly.
The behavior seems pretty erratic. The bug doesn't always reproduce as is - when I drag fast, it doesn't happen.