Auto-search in QuickSearch returns results in the wrong order

Steps to reproduce:

• Log into http://intranet.nuxeo.com/nuxeo/.
• Open the Quick Search.
• Type the word security (do not copy/paste)
  => Correct search results appear (returns results for security).
  => After a couple of seconds, the results change and are no longer correct (returns results for all words starting with SE).
  => After a couple of seconds, the results change again and are still not correct (seems to return search results for all words that start with the letter S). Results do not change after this.
• Using the backspace key, remove the y from security
  => Correct search results appear (returns results for securit). Search results do not change after this.

See attached video.

Note
seems we need a bounce on the input not to search for every character.
Looks like the less chares searches are bigger and therefore come in later and override the others.