Steps to Reproduce:

1. Set "typescript.tsserver.trace": "messages"
2. In a js file:

function fooooooooooooo() { }

foo

2. Trigger suggestions at end of foo and start typing

Bug
In the typescript output panel, notice multiple completionEntryDetails calls in the logs as you type. This is caused by vs code calling resolveCompletionItem on the same item again for each keystroke