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It seems that some applications have their QML cache wiped by QtMir when
they are stopped with ubuntu-app-stop from the command line. So far this
seems to include Camera, Gallery and most (but not all) web-apps.
Closing the app via the UI maintains the cache.
Steps to reproduce (all from the devices UI or shell):
1.) Open Camera from the Dash/Launcher
2.) ls ~/.cache/QML/Apps
- Confirm that the Camera app triplet is listed and copy it to the clipboard
3.) ubuntu-app-stop <app triplet from step 2>
4.) ls ~/.cache/QML/Apps
Expected result:
Directory for camera is listed
Actual result:
Directory for camera is not listed. grep'ing ~/.cache/upstart/unity8.log
shows "qtmir.applications: Application appId=
"com.ubuntu.camera_camera_<version>" Wiping QML Cache"
Camera can be replaced with Gallery or a web-app such as Amazon or Cinco
Dias (although Twitter which is also a web-app isn't affected
apparently)
$ system-image-cli -i
current build number: 189
device name: krillin
channel: ubuntu-touch/rc-proposed/bq-aquaris.en
last update: 2015-11-26 17:09:32
version version: 189
version ubuntu: 20151126
version device: 20151028-869191d
version custom: 20151111--36-46-vivid
** Affects: canonical-devices-system-image
Importance: High
Assignee: MichaĆ Sawicz (saviq)
Status: Confirmed
** Affects: qtmir (Ubuntu)
Importance: High
Assignee: Daniel d'Andrada (dandrader)
Status: New
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some applications have their cache deleted when stopped with ubuntu-app-stop
https://bugs.launchpad.net/bugs/1520525
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