$triggerMetadata.isReplaying is always True after the first Invoke-ActivityFunction

In C#, the context.IsReplaying property would reflect the replaying status up to that line of code. But in Powershell, once the first activity function is called, then the value of $triggerMetadata.isReplaying is always true for every line of code executed after that.

IsReplaying is critical for logging - without it I can only effectively log from the very beginning or the very end of an orchestrator function, but nowhere in between.