This brings Twenty Twenty in-sync with GitHub.
For a complete list of changes since [46571], see 4549fd9...dea9290.
Reviewed by ianbelanger, SergeyBiryukov, desrosj.
Props anlino, ianbelanger, poena, williampatton, collet, erikkroes, torres126, intimez, byalextran, mehidi258, swapnild, nielslange.
Merges [46613] to the 5.3 branch.
Fixes#48450.
Built from https://develop.svn.wordpress.org/branches/5.3@46614
git-svn-id: http://core.svn.wordpress.org/branches/5.3@46411 1a063a9b-81f0-0310-95a4-ce76da25c4cd
