moo.shell.tests.test_iac.test_parser_recovers_from_corrupt_sb_frame

moo.shell.tests.test_iac.test_parser_recovers_from_corrupt_sb_frame()

A non-IAC/non-SE byte arriving after IAC inside an SB payload aborts the frame without raising; the parser is back in NORMAL state for the next feed and does not mix the abandoned payload into a later event.