REST API: Add tests for the sideload convert_format boolean arg (backport GB #77565)#50

adamsilverstein wants to merge 1 commit into

backport/77036-multi-sizeadamsilverstein/wordpress-develop:backport/77036-multi-sizefrom

backport/77565-convert-formatadamsilverstein/wordpress-develop:backport/77565-convert-formatCopy head branch name to clipboard