Logging Who Triggered a Manual Stage

When a Plan is run manually it obviously logs who triggered it in the build result summary/history, but also there is a MetaData tab that contains the property "ManualBuildTriggerReason.userName" with a value of the user who triggered it.

If a Plan contains a Stage that is marked MANUAL then when that Plan is triggered in a non-manual way, say single daily build, VCS polling, or cron expression the plan runs, pauses at the Manual Stage, and waits for someone to continue the paused Manual Stage. This is a MANUAL action a user must take, thus the person who performed the action should get logged, but it does not, plus the ManualBuildTriggerReason.userName property doesn't get created/logged even though the Manual Stage was manually continued by userX. Whether it is that property or another one it seems the user who continues the Manual Stage should get logged somehow.