useTracker renders two times at mount, would be nice if it renders only once

@Poyoman39 is already working on this.

Since Apr 10, 2025.

• #436 by @Poyoman39 — open
• #440 by @Poyoman39 — open

This code renders two times

```
const Test = ({ afterMountInc = false }) => {
renderCount++;
console.log(renderCount);
value = useTracker(() => {
return null;
}, []);
return {renderCount};
};

ReactDOM.render(, container);
```

Review linked pull requests #436 and #440 before starting, then reproduce the report with the supplied Test component, useTracker call, and ReactDOM.render entry point. Done means the component renders once at mount while preserving the reported useTracker behavior.

Written by the indexing model from the issue text.