Comment 8 for bug 1749475

I did some testing on this recently and when I got an ISE I did get this in the logs:
Error processing Trigger template: undef error - Can't call method "textContent" on an undefined value at /usr/local/share/perl/5.18.2/OpenILS/Application/Trigger/Reactor.pm line 452.
That line is trying to pull a pubdate to sort by and 3 of them were indeed missing 008s. They undoubtedly poor records, but these things hide everywhere and throwing an ISE at users is pretty ugly.