In Snapshot 14w10a it was added that Skeletons flee from wolves... but when the wolves start attacking the skeletons it only seems reasonable that the skeletons fight back
Comments 6
Is this still a concern in the current Minecraft version 14w18a / Launcher version 1.3.11 or later? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.
I believe that in SethBlings Snapshot-Video you where able to see that the Skeleton do fight back, you might just have gotten unlucky.