hot reload for UI, controller and state change won't work

[bourdaisj]

Describe the bug
I can't get the hot reload feature to work for controller function, UI and state change. However, the trame_server.utils.hot_reload.hot_reload decorator works fine.

EDIT: 17_dev_reload example works fine, with a few updates, see here: #456
EDIT 2: same behavior as described above with validation/core/17_hot_reload.py

To Reproduce

Steps to reproduce the behavior:

1. Run the examples/validation/core_features/hot_reload.py examples
2. try to change stuff in controller function or state change listener
3. if does not work
4. try to change stuff in the UI definitions
5. it does not work

Expected behavior

The reload should happen correctly at runtime.

Platform:

Device:

• Desktop
• Mobile

OS:
tested on both mac M1 and linux

• Windows
• MacOS
• Linux
• Android
• iOS

Browsers Affected:

• Chrome
• Firefox
• Microsoft Edge
• Safari
• Opera
• Brave
• IE 11

[bourdaisj]

@psavery

[jourdain]

https://github.com/Kitware/trame-server/releases/tag/v2.16.1