Make ItemStack:set_count(0) clear the item stack

fixes minetest/minetest_game#786

diff --git a/src/script/lua_api/l_item.cpp b/src/script/lua_api/l_item.cpp
index 842b157090bdbb9e9ce7a1933d9a93c7d22c520d..5381cba7616c0c62378372d4e57b3273e5b17c83 100644 (file)
--- a/src/script/lua_api/l_item.cpp
+++ b/src/script/lua_api/l_item.cpp
@@ -94,7 +94,7 @@ int LuaItemStack::l_set_count(lua_State *L)
 
        bool status;
        lua_Integer count = luaL_checkinteger(L, 2);
-       if (count <= 65535) {
+       if (count > 0 && count <= 65535) {
                item.count = count;
                status = true;
        } else {