ReportWatchdogFaultIfNeededAsync built the StaHung fault with
CommandMethod = snapshot.CurrentCommandCorrelationId, so the wire
fault's command_method field carried an opaque correlation id (or
empty) instead of a method name -- a consumer reading CommandMethod as
a method name got a confusing value. Use a stable "Watchdog" label and
fold the stuck command's correlation id (when present) into the
diagnostic message instead. No test asserts CommandMethod for the
StaHung fault; the existing assertions only check Category and that
DiagnosticMessage contains "STA activity is stale", both unchanged.
Joseph Doherty
3679e59eed