PartDesign: Pockets in cylinders doesn't stop properly (to first/up to face)

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Problem description

I'm doing (on FC 1.0) a modeling exercise suggested in this tutorial: [[https://youtu.be/F7ZnYQ7TQws?feature=shared](https://youtu.be/F7ZnYQ7TQws?feature=shared&fbclid=IwZXh0bgNhZW0CMTAAAR3JVZg9feG_YbyVzuoip82oKD-gQhQTacwTFYnfcs1Hn-lqQKpX3omKAT4_aem_Rk_ChoDqUIkBhUaIvuVMxQ)](https://www.youtube.com/watch?v=F7ZnYQ7TQws) (which dates from 2023).
Unfortunately, at the 16:04 mark of the video, things go differently for me.
When I want to do the leaning “pocket”, specifying “up to the first” to stop against the first vertical “pocket”, FC doesn't finish as properly as expected.
(I've tried different ways but the result isn't alright, sometimes FC does a kind of inverted Boolean operation...)

### Full version info

```shell
OS: Windows 10 build 19045
Architecture: x86_64
Version: 1.0.0.39109 (Git) Conda
Build type: Release
Branch: (HEAD detached at 1.0.0)
Hash: 2fcc5317fe3aee96ca73475986a577719fc78e20
Python 3.11.10, Qt 5.15.15, Coin 4.0.3, Vtk 9.3.0, OCC 7.8.1
Locale: French/Switzerland (fr_CH)
Stylesheet/Theme/QtStyle: unset/FreeCAD Classic/Qt default
```

### Subproject(s) affected?

PartDesign

### Anything else?

**My .FCStd:**
[Base_reprise3.zip](https://github.com/user-attachments/files/18308960/Base_reprise3.zip)

**Screen recordings (2 versions of the problem)**

https://github.com/user-attachments/assets/50abb502-06d9-4c2e-9592-f057ddc1f7d8

https://github.com/user-attachments/assets/b480262a-c3d3-4e36-86d7-92e50d13c0e1

-----------------------------
As we can see in this tutorial from 2023 (at 16:04), it seems that, in a similar case on previous version of FC, function "Pocket" then "To first" was working: https://www.youtube.com/watch?v=F7ZnYQ7TQws

### Code of Conduct

- [X] I agree to follow this project's Code of Conduct