Remote: Do not upload empty output to remote cache. #13594
Closed
+104
−5
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An unintended side-effect of change cc2b3ec is that zero-sized blob won't be uploaded to gRPC cache. However, the behavior is existed for a long time and the REAPI spec is also updated accordingly. This change makes the behavior explicit and brings it to other remote cache backends.
Context #11063.
Fixes #13349.