AT:

• own tab for user tasks (process instance view, historic data)
• tab shows history data of a user task last value
• follow up date added to both: live and full view
• task history tab shows same columns as live view, except:
  • no delegation state
  • plus: completion date, duration
• complete history log of a user task can be loaded (as separate action with dialog)
  • for data see screenshot

Hint: we should make the tab comparable to the user task tab in live-view