VideoBlockEditor:Poster Modal

Build 2966 on 22-07-JG-feat-video-library-open-when-no-video-selected
360px
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Baseline History
Build 296638ea1f7
Current build. There are unaccepted changes, so build 1826 is still the baseline.
Build 1826795d939 current baseline
Accepted by John Geronimo.
Build 1773515e4f5
Accepted by Siyang Cao.
Build 1698d892b39
Accepted by Siyang Cao.
Build 1691de1cb44
Accepted by Tataihono Nikora.
Commenting is disabled because there's a newer build on this branch