Issues with useTreeData hook

[IshakuMN]

when I try to append or perform any adding function to a node in my tree, It adds double of the intended items to add. I see it through the console logs using tree.getItems(key). And under the children of a node I can only see the first added item even though I try to add multiple times it shows be only the first one I added. what could be the issue? no issues in adding to the root of the tree only to a node

`let tree = useTreeData({
initialItems: [
{
name: "People",
items: [{ name: "David" }, { name: "Sam" }, { name: "Jane" }],
},
{
name: "Animals",
items: [{ name: "Aardvark" }, { name: "Kangaroo" }, { name: "Snake" }],
},
],
initialSelectedKeys: ["Sam", "Kangaroo"],
getKey: (item) => item.name,
getChildren: (item) => item.items,
});

const handleAddToTree = () => {
tree.append("People", { name: "uuu" });
console.log(tree.items, tree.getItem("People"));
};`

this is the result of calling the add function twice

[IshakuMN]

I see that I only have that issue in development and not in production

[IshakuMN]

No, is not in React StrictMode and is not inside useEffect nor is it running multiple times. I seriously don't know why. I even created another protect but is still misbehaving and the misbehaviours are not even consistent. I tried so many things but only works on build.

[reidbarber]

If you're able to reproduce it in a codesandbox or stackblitz, I can take a closer look.

[IshakuMN]

Okay, here is the link. You can check what is going on in the console

https://codesandbox.io/p/devbox/autumn-architecture-xkcfjz?file=%2Ftsconfig.json&workspaceId=4313c52e-5a37-4dd6-9706-f94f179d4229

[reidbarber]

I added reactStrictMode: false to the next.config.js and the problem disappeared, but it should be working in strict mode (our test suite runs in strict mode.) Feel free to convert this into an issue so it can be further investigated.