In the album turn to the phone to landscape mode then turn back ,there is a blank page

[quandan]

current build number: 55
device name: krillin
channel: ubuntu-touch/rc-proposed/bq-aquaris.en
last update: 2015-07-02 04:38:03
version version: 55
version ubuntu: 20150702
version device: 20150529-8e13c5f
version custom: 20150528-722-29-15-vivid

Steps：
  1.create a album with some pictures
  2.make sure the cover is the album is original black(if not ,enter into the album ,slide to the right until the black cover come out)
  3.rotate your phone to landscape mode
  4.press the album and look through it ,then slide left to the cover , press back key
  5.rotate your phone back

Expectation:
  there won't be any blank page appears after step 5

Actual result:
  there is a blank page after step 5