droolsjbpm/jbpm — pull request #139 by mswiderski (2012-10-26 13:52:00+00:00)
Title: JBPM-3831 - 2^x 'garbage' timers are created when rolling back a transac...

...tion that involves the execution of a process that includes a timer

part 2 (first one was in drools code base)