open photo from scope fails on first try

[Evan Wang]

$ system-image-cli -i
current build number: 31
device name: arale
channel: ubuntu-touch/tangxi-vivid-proposed
last update: 2015-06-12 16:25:17
version version: 31
version ubuntu: 20150430.1
version device: 320f13ea3dee85f6a8a8a0fe1f6e039b8a6eeaca8fc053d5275602ba2aebee44
version custom: 92aa1322afef2f104a0374f845554f8e45cd2ba7e405be99a1f365fbe122e4e9

Steps to reproduce:
1. Flash the phone to get a fresh install.
2. Take some photos in the camera app.
3. Navigate to those photos in the Photos scope.
4. Select a photo and tap 'open'.

Expected results:
Selected photo opens in the gallery app.

Actual results:
Gallery app opens and shows the 'Events' view, but does not open the chosen photo.
On second attempt, the expected results happen.

[Sebastien Bacher (seb128)]

could be due to bug #1453218 (index not refreshed when not starting the gallery standalone)