Looks like the maxinput setting which is supposed to limit the max size of a file upload is not being honoured. That's potentially nasty...
With the spooler threads disabled, test http-4.5 just fails. It returns 200 OK and the content where as it should return 413 Request Entity Too Big. With the spooler threads enabled, the test hangs. Sometimes... It was doing this occasionally, now it does it consistently for me. Once, it did hang just prior to this test beginning to run. Something racy going on there... Also, test http-3.3 for the maxheaders limit fails.
