Always buffer tandems that appear before listeners wired up (instead of static flag), and simplified listener startup sequence, see https://github.com/phetsims/tandem/issues/34
Always buffer tandems that appear before listeners wired up (instead of static flag), and simplified listener startup sequence, see https://github.com/phetsims/tandem/issues/34

phetsims/joist,phetsims/joist,phetsims/joist