App|acceptance:cra-react15

Build 11859 on next
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Baseline History
Build 11859ab8b0f2
Current build. There are unaccepted changes, so build 11817 is still the baseline.
Build 11796d7b89f4
Accepted by Michael Shilman.
Build 11381a4dded4
Accepted by Michael Shilman.
Build 113320a45c30
Accepted by Gert Hengeveld.
Commenting is disabled because there's a newer build on this branch