During auto-completion, whenever the mouse cursor happens to be in the area of the auto-completion popup, the entry under the mouse cursor is highlighted - even if the mouse has not been moved.
Steps to reproduce
[[a(or any other letter) to start auto-completion.
- Move mouse cursor over third item of the auto-completion popup.
- Hit [Backspace] to abort auto-completion.
a(or any other letter) to re-start auto-completion.
The first auto-completion entry should be highlighted.
The third auto-completion entry is highlighted.
Win 10 Pro x64, Chrome 62.0.3202.94 x64