Contributors.load should be asynchronou because it may download a list of contributors from github.org, and that download should be asynchronouss.
<rdar://problem/107228856>
Pull request: https://github.com/WebKit/WebKit/pull/11975
Committed 263086@main (25a06d784589): <https://commits.webkit.org/263086@main> Reviewed commits have been landed. Closing PR #11975 and removing active labels.