Thumbnailer: Allow width/height to be deduced from A/R

5 jobs for thumbnail_sizes in 18 minutes and 16 seconds
Status Job ID Name Coverage
  Test
passed #286708
amd64 debian
asan-ubsan

00:12:24

passed #286717
amd64 debian
linux

00:05:50

passed #286706
win32
win32

00:10:57

passed #286707
win64
win64

00:11:06

failed #286705
amd64 debian
linux

00:08:57