Unmatched contacts displayed in result list when searching for single letter

[Caroline Yu]

~$ system-image-cli -i
current build number: 272
device name: arale
channel: ubuntu-touch/rc-proposed/meizu.en
last update: 2016-03-16 05:48:58
version version: 272
version ubuntu: 20160316
version device: 20160111-51982fc
version custom: 1452441600

Reproduce Steps:

1) Open the Contacts application.
2) Create some new contacts with the name "TTTT", "tttt", "GGGG", "gggg", "kkkkk", "hhhhh".
3) Press search icon.
4) Search for contact by letter 'T' or 't'.

Actual Result：
Not only the matched contacts "TTTT", "tttt" are displayed in the result list, but also unmatched contacts "KKKK", "HHHH" are listed.

Expect Result:
Contacts should be filtered according to letter 'T' or 't'.

Notes :Search function can't identify letter "T"and "t" .

[Bill Filler (bfiller)]

I'm not seeing this behavior on rc-proposed. Renato please check it.

[Pat McGowan (pat-mcgowan)]

Search seems totally broken with 1 or 2 letters, 1 letter matches every entry, 2 letters seemingly random sets of entries

rc proposed on mx4

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Renato Araujo Oliveira Filho (renatofilho)]

yes I can confirm that. I still not sure what is causing it.