GitHub will sometimes serve commit links both as "<owner>/<repository>/commits/<hash>" and "<owner>/<repository>/tree-commit/<hash>". We should support both formats.
<rdar://problem/73256932>
Created attachment 417717 [details] Patch
Created attachment 417718 [details] Patch
Committed r271532: <https://trac.webkit.org/changeset/271532> All reviewed patches have been landed. Closing bug and clearing flags on attachment 417718 [details].