MTP'd photos don't display in my photos after gallery edit

[Kyle Nitzsche]

Allan LeSage reports (in [1]) that photos put on the device by MTP do not display in My Photos after they are rotated in Gallery.

He also reports that photos taken by camera DO display (rotated) after rotation in Gallery.

And I find photos downloaded through Browser DO display (rotated and/or croped) after edit in gallery (on a different system).

So the issue may have something to do with MTP origin of the photo.

Allan's System:
phablet@ubuntu-phablet:~$ click list | grep photo
com.canonical.scopes.fbphotos 1.27
com.canonical.scopes.photos 4.4.0
com.canonical.scopes.photos-local 1.30
phablet@ubuntu-phablet:~$ system-image-cli -i
current build number: 303
device name: arale
channel: ubuntu-touch/rc-proposed/meizu.en-proposed
last update: 2016-03-25 12:19:11
version version: 303
version ubuntu: 20160325
version device: 20160310-193f49c
version custom: 20160324-945-18-69

[1] https://bugs.launchpad.net/ubuntu/+source/unity-scopes-api/+bug/1384243/comments/18

[Allan LeSage (allanlesage)]

Cut-and-pasting from bug 1562113.

TEST CASE
1. Transfer a photo to phone via MTP
2. Navigate to photos scope, refresh
3. Tap to open photo, open photo in gallery
4. Edit photo (e.g. rotate) (back arrow to return to list gallery view to complete edit)
5. Return to photo scope, refresh
EXPECTED
Photo thumbnail appears in edited state (e.g. rotated)
ACTUAL
Photo thumbnail has disappeared

NOTE: related to the implementation of bug 1384243 , discussed with kyleN, the MTP use case was not served there, opening this new bug for clarity as other projects may be affected.

[Launchpad Janitor (janitor)]

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