I noticed recently that EntityExplodeEvent#blockList was full of blocks when a WindCharge explodes, even tho no blocks explode when that entity explodes.

Steps to test:

• Add Test.jar to server
• Login, grab a "wind charge" item from creative menu
• Throw it towards a block (it will explode and no blocks will explode)
• Console will be flooded with blocks that exploded

Test code from Jar:

@EventHandler
private void onExplode(EntityExplodeEvent event) {
    for (Block block : event.blockList()) {
        Bukkit.getConsoleSender().sendMessage("- " + block);
    }
}