This setting pertains to TraceArgument.Barriers and TraceArgument.FilterBarriers, as well as other traversability (Traversability) and filter (Filter) settings. For example, if you are performing a gas or water subnetwork trace, setting this value to True will cause closed valves to be included in the trace results.
If the feature that stops trace results has terminals, the terminal on the side of the device where traversal began is always included, regardless of this setting. For example, if a downstream trace in an electric transmission network encounters an open circuit breaker, the source terminal on that circuit breaker will be included in the trace results (and the load terminal will not).