Unclear behaviour with AJAX whitelist and fuzzySearch, "old" suggestion gets selected

[stroebjo]

Prerequisites

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

Demo Page

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

Explanation

I use tagify with the suggested method for a dynamic whitelist via AJAX.

When you type in data architecture in the JSBin example above, it works as expected, but when you type data collaboration, and hit enter the resulting tag is data architecture. The suggestion stays even though the AJAX whitelist returns an empty list ([]) after the value data c.

This is not the case for Star Wars (present in the AJAX) and Star Gate (not present), or foo bar/foo test.

Setting dropdown.fuzzySearch to false "fixes" this behaviour for the data collaboration example. But is this expeced?

In case of a static whitelist with fuzzySearch enabled, it works as expected (https://jsbin.com/qeronobori/1/edit?html,js,output).