autoComplete.rightKey = true, mode = null (Default), two problems with the rightKey behavior

[dirslashls]

Prerequisites

• [x] I am running the latest version
• [x] I checked the documentation and found no answer
• [x] I checked to make sure that this issue has not already been filed

💥 Demo Page

https://jsbin.com/kufahiratu/edit?html,js,output

Explanation

• What is the expected behavior?

  1. After narrowing down the whitelist by typing some text, using right arrow results in adding the tag, but the tag's text also gets re-entered into the input box as a plain text.
  2. Without narrowing down by typing, just invoking the dropdown, using down arrow to highlight an option and then entering right arrow doesn't select that tag.

• What is happening instead? See how "bb" tag is added and also the "bb" text after that in the attached image.

• What error message are you getting? No error messages.