Back button does not retain entries

[stricarm]

If you select to show a Back button on a subtest, and you then click it on the apk, the entries on the previous screens are all removed (except for what was typed in for open questions); that should not be the case. The previous entries should show and you should be able to edit them, and then get back to the later screen by hitting "NEXT" again, saving any edits

[skippskipp]

This is causing issues for Save the Children