Commit 89b1a9844ccb910595444641948121fdeb370350 does not seem to make sense. Kernel messages containing the "<someapp> invoked oom-killer" phrase do not mean that someapp has been killed. This was just the application that hit the OOM condition. In this context the "WARNING: Out of memory killer killed these executables" message is just wrong.</someapp>
BTW, the message should say "WARNING: Out of memory killer killed these executables or their children" because the oom-killer can kill the process with the highest score or "sacrifice child".
Also see: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=833350
Fixed in commit 6915e5184178ed9e3f6e1a29cacb29389417e326. Thanks for reporting.