Using the back button on a linked drill-down sub-report resets parent Jasper report

Document ID : KB000117381
Last Modified Date : 23/10/2018
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Issue:
When running a custom report that has drill down links that launch a sub-report, if the back button is hit on those sub reports, it doesnt go back to the original report with the previously returned data, but rather the page is refreshed losing all data and parameters that were set on the original report.  This worked in PPM 14.3 with Jasper 6.2, but started occurring after upgrading to PPM 15.4 and Jasper 6.4.2.
Environment:
CA PPM - 15.x with Jasper 6.4.x
Resolution:
This is a known Tibco Jasper Defect - JS-33944 which is expected to be fixed in a future version of the product.