Gallery shows empty in Events category when adding picture in message if gallery-app didn't launch before

[quandan]

current build number: 276
device name: arale
channel: ubuntu-touch/rc-proposed/meizu.en
last update: 2016-03-21 06:31:50
version version: 276
version ubuntu: 20160318
version device: 20160111-51982fc
version custom: 20160314-937-9-57

Steps:
1.Newly flashed device and gallery didn't launch before
2.Open camera app and take some pictures
3.Open message app and compose a message
4.Tap "+" icon and select image
5.Choose gallery

>Gallery show empty in Events category, but the photos taken at step2 appears in Photos category

Expectation:
After step 5, pictures taken in step 2 will show in gallery when adding a picture in message

Actual result:
Gallery shows empty in Events category when adding picture in message app