[Bug]: Links broken if I have two headings with same title in org mode

If I have the following org-mode file:

```
* TOC :no_export:TOC_3
* Preamble
** Tests
*** Demos

* Demos
```

When I save the file and the TOC is updated, the links are broken.
If I try to jump to `* Demos` it will jump to `*** Demos` (the first occurence) instead.