User suggest picker doesn't honor the limit for local users

To reproduce:

• Create at least 10 users in you wiki
• Edit suggestUsersAndGroups.js and replace the 2 locations where there's 10 by 5.
• Create a page with the following content:

  {{velocity}}
  {{html}}
  #set ($userPickerParams = {
    'data-userScope' : 'LOCAL_ONLY'
  })
  #userPicker(true, $userPickerParams)
  {{/html}}
  {{/velocity}}

• Open your browser dev tool and make sure cache is disabled for javascript.

Notice that 10 results are returned.

Then:

• Replace "LOCAL_ONLY" by "LOCAL_AND_GLOBAL"

Notice that 5 results are returned correctly.