I cant understand the assignment statement in ProfilerMiniView

the path: Engine\Source\Developer\Profiler\Private\Widgets\SProfilerMiniView.h
in the function CalculateMaxThreadTime()
the assignment statement:
TotalThreadTime = CurrentTotalTile;
GameThreadTime = CurrentRenderThreadTime;
RenderThreadTime = CurrentGameThreadTime;
I read the related code, and I am not sure if it is a bug
any idea? thanks