no logfile on aborting test execution

With any recent version of fitnesse (the version I'm running now is: [1]) no logging is available after aborting test execution. I would expect logging to be available upto the point where the execution was stopped. I have no clue when this behavior was changed. I am using slim testrunners.

My system:
$ java -version
java version "1.7.0_40"
Java(TM) SE Runtime Environment (build 1.7.0_40-b43)
Java HotSpot(TM) 64-Bit Server VM (build 24.0-b56, mixed mode)

Using Mac OS X 10.8.5

[1] https://github.com/unclebob/fitnesse/commit/1a137ceb8c5a8b9eeec09038398bf430276c9cae