CancelTarget on a MAC that isn't a peer, and Start on a context ID that
doesn't exist, faked success for every game. On the PSP they fail with
UNKNOWN_TARGET and INVALID_ID (pspautotests net/adhoc/matching). Only
the games they were added for keep them now:
MatchingCancelUnknownTargetSucceeds for Soulcalibur: Broken Destiny, and
MatchingStartUnknownIdSucceeds for GTA: Vice City Stories.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>