Alan Guo Xiang Tan 064bca430c PERF: Preload Post#image_upload in TopicView.
This fixes an N+1 queires problem when generating `Post#image_url` which
requires the upload to be loaded.

Follow-up to 141f16eb6b6f3f35a10dc1133e66507dd5931fb0
2021-06-07 14:43:49 +08:00
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2020-01-15 11:27:12 +01:00
2020-05-05 13:46:57 +10:00
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2020-05-05 13:46:57 +10:00
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