We would definitely require reset paging functionality which will recreate the paging for the same paging container. I believed, this would be the right way of doing it.
Use Case: 
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Reset the content after traversing to page 5
Steps:
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1. Update the content
2. User select the page number 5. Paging container shows paging options as First, Previous, 3,4,5, Next, Last
3. Updates Content with the different set of result which has more content
4. Paging has to be reset from start index 1