Cannot use newly added custom URL in the Asset Library if it has been programmatically added

[yankscally]

• Production edit: Follow-up to Expose the asset library URLs property from editor settings #99175.

Tested versions

4.3

System information

Windows 10

Issue description

the asset library does not reload the available_urls list in the editor when adding a custom URL in EditorSettings, even after project reload.

I added one manually and it worked.

Steps to reproduce

when you add a new URL to the Asset Lib, it doesn't update in this dropdown, even when reloading

if I add it manually it works, when I do it from code I only see this:

Minimal reproduction project (MRP)

n/a

[PhairZ]

I don't clearly understand whats the problem. IMC I tested this on godotv4.4.dev.custom_build [277cb68] and it had no issue.
I went to project settings.
I added another Asset Library URL.
Reloaded the project as the editor had instructed me.
Opened the Asset Library and found the Site available.

[yankscally]

I don't clearly understand whats the problem. IMC I tested this on godotv4.4.dev.custom_build [277cb68] and it had no issue. I went to project settings. I added another Asset Library URL. Reloaded the project as the editor had instructed me. Opened the Asset Library and found the Site available.

The problem is:

• you cannot programmatically add a site to that dropdown
• even when done manually, the site doesn't appear for me anymore, it worked only once and I had to reload manually

[PhairZ]

Can I ask why would you want to change editor settings in-code?

[yankscally]

Can I ask why would you want to change editor settings in-code?

To support an external asset library.

I have been advised against by the asset library maintainers as they are refactoring it, but none of the plans are public yet so I'm not sure how I'd anticipate that. In true godot fashion I just made my own asset browser out of control nodes.