I tested this in SP then with a freshly compiled Spigot 1.11.2 with all defaults and no plugins. When a charged creeper kills a wither skeleton there is no head drop under spigot but there is in SP.
I tested this in SP then with a freshly compiled Spigot 1.11.2 with all defaults and no plugins. When a charged creeper kills a wither skeleton there is no head drop under spigot but there is in SP.