Comment 12 for bug 812593

Indeed, applying it to our systems led to a situation where attempting to print a hold pull list failed with an error complaining about:

robj.template_output() is null

Checking our osrferror.log entries, we found something like this lurking every time an error occurred elsewhere:

Event reacting failed with Can't call method "run" on an undefined value at /openils/lib/perl5/OpenILS/Application/Trigger/EventGroup.pm line 52.

Restoring to our original code fixed the pull list errors we were seeing. Not sure why they'd be related, but perhaps something broke in our trigger/reactor.pm file when we patched it...