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Fix hopper breakage in get_item_group return value.
In commit 55009c257e253c49dacf017e4bd56bc36aca2e10 that added vectors to mcl_composters, mcl_hoppers was accidentally patched with a unrelated change, updating it to get_item_group(). This mostly works, but in one particular case the semantics of the return value differs. Instead of returning 'nil' it returns '0'. That altered the evaluation of an if condition, breaking the abm that sucks in items. This commit fixes the conditional by explicitly comparing '~= 0'.
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@ -343,7 +343,7 @@ minetest.register_abm({
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local abovenode = minetest.get_node({x=pos.x, y=pos.y+1, z=pos.z})
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if not minetest.registered_items[abovenode.name] then return end
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-- Don't bother checking item enties if node above is a container (should save some CPU)
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if minetest.get_item_group(abovenode.name, "container") then
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if minetest.get_item_group(abovenode.name, "container") ~= 0 then
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return
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end
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local meta = minetest.get_meta(pos)
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