Can OF WidgetsExtension be relaunched without crashing OmniFocus?

OmniFocus
1

OmniFocus
375,5 MB
OmniFocusWidgetsExtension
1,71 GB

Why is OmniFocus WidgetsExtension using so much memory? And what is the WidgetsExtension anyway, can it be restarted?

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best regards,
OmarKN