DiscussionLayout:A discussion with short comments

Build 1483 on mxdvl/doughnut-paths
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Baseline History
Build 148377d2fd8
Current build. There are unaccepted changes, so build 1482 is still the baseline.
Build 1481159bfa0
Accepted by Max Duval.
Build 147847e26d6
Accepted by Max Duval.
Build 1472c63914e
Auto-accepted
Commenting is disabled because there's a newer build on this branch