This goes back to a slightly older variant of the
SubmitInput/QueryOutput handling that doesn't use AMF's timeout
property. Older devices do not like it when you change the query timeout
on the fly and will lock up. So instead, wait one millisecond when the
AMF input is full, which appears to fix the issue according to testers.
Also adds a loop timeout in case it goes in an infinite loop (which it
shouldn't anymore, but still)
Big thanks to Flaeri for testing the old code, and Yukari for patiently
testing a whole bunch of builds.
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