Created attachment 1066841 [details]
Video illustrating the issue and steps to reproduce

Description of problem:
In contributors perspective: 

When filtering select is used to filter the commits AND the user has navigated the table to some different page (using table paging) the table disappears and the following error appears instead: ERROR: java.lang.Throwable: offset can't be greater than the number of rows: 20

Looks like some table paging issue.

Version-Release number of selected component (if applicable):
BPM Suite 6.1.0 ER1

How reproducible:
Always

Steps to Reproduce:
1. Start business-central (let it setup the default jbpm-playground  - default settings)
2. Navigate to contributors perspective
3. Use pager to move to Table page 4 or more
4. Filter based on Author (e.g. Kris - or someone who has less commits that the commits that fit on the currently displayed table page)

Actual results:
Exception in server.log: java.lang.IllegalArgumentException: Offset can't be greater than the number of rows: 20 (full stact trace in attachment).

When user click "next" in the table pager, this error also appears in UI.

Expected results:
Page should probably be reset to the first page when filtering via selects and no exception should be thrown.

Additional info: