Steps to reproduce:
1) go to historic process instance view
2) select external tasks tab
3) go to last page
4) select an (external) task on the diagram
The following message is shown inside the external tasks tab: No external tasks for this process instance
The selected external task is shown in tab.
- The same problem occurs also in other tabs.
- When filtering by the diagram the page is not reset to 1 (it remains on the last page)