If a patch is over the 2M patch limit on bugs.webkit.org, webkit-patch upload will fail to upload it but will not report an error. Instead it appears to succeed.
https://bugs.webkit.org/show_bug.cgi?id=35206 has an example of such a patch.
*** Bug 58857 has been marked as a duplicate of this bug. ***
Sad times. We should look at the bugzilla error code I guess. I think we have similar trouble with misspelled CCs.
This is very similar to bug 31760.
I suspect that the two places we need to check (and yell loudly) are:
Possibly even returning or at least checking the result of browser.submit() here:
Duping this against bug 72863 since there has been more activity there.
*** This bug has been marked as a duplicate of bug 72863 ***