It does not look like this this bug was fixed. I'm still seeing multiple
requests for a single image.

Go to events page in the gallery app and tap on a photo. Displaying that
single photo sends multiple requests to the thumbnailer:

thumbnailer-service: [01:01:02.355] "thumbnail: 
/home/phablet/Videos/com.ubuntu.camera/video20150720_010015553.mp4 (0,0): 
0.009003 sec (FULL-SIZE HIT)"
thumbnailer-service: [01:01:02.378] "thumbnail: 
/home/phablet/Videos/com.ubuntu.camera/video20150720_010015553.mp4 (1060,1060): 
0.023805 sec (FULL-SIZE HIT)"
thumbnailer-service: [01:01:02.383] "thumbnail: 
/home/phablet/Videos/com.ubuntu.camera/video20150720_010015553.mp4 (1222,1060): 
0.010407 sec (FULL-SIZE HIT)"
thumbnailer-service: [01:01:02.400] "thumbnail: 
/home/phablet/Videos/com.ubuntu.camera/video20150720_010015553.mp4 (1222,1222): 
0.025453 sec (FULL-SIZE HIT)"
thumbnailer-service: [01:01:02.454] "thumbnail: 
/home/phablet/Videos/com.ubuntu.camera/video20150720_010004143.mp4 (1222,1222): 
0.004059 sec (FULL-SIZE HIT)"

Note that I'm seeing this every time I tap on a *photo*. However, the
thumbnail requests are for one of the videos I took. It looks like the
gallery app is asking for thumbnails for *video* files every time I tap
on a *photo*.

Also, the request for (0,0) is problematic. It means "Give me the image
at full size" (bounded to a 1920 box). A full-size image is most
definitely *not* a thumbnail. The gallery app shouldn't be asking for
"thumbnails" at full size. All this does is waste disk space and make
the cache less effective. Instead, for the full-size image, the gallery
app should be reading the image file directly, I would think?

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https://bugs.launchpad.net/bugs/1460993

Title:
  Multiple thumbnail requests for a single image

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