Bug 31085: Reload return claims table on resolve

Bug 31085: Reload return claims table on resolve

This is another fix for a bug in return claims. We now test for the
initialised datatable and call an ajax reload directly on it if we find
one instead of calling a undefined function (the function is out of
scope here).

NOTE: Taken as a whole commit follow-up on bug 28854 where the issue was
initially identified

Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>