Zombie Pigmen attacks after being attacked by Skeleton.

Please attach the crash report ([minecraft|http://hopper.minecraft.net/help/finding-minecraft-data-folder]/crash-reports/crash-<DATE>-client.txt), otherwise we can not diagnose this issue.
For technical support please use the Mojang Support Center.

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May i ask how in gods name does this bug require a crash report. This person is not reporting a crash at all. please fix your bots.