ResourceLoader.CACHE_MODE_IGNORE does not ignore the resource cache

[Hakunamawatta]

Godot version

4.0 (3b4e94c)

System information

Linux Mint 20.2

Issue description

When using ResourceLoader to load resources, CACHE_MODE_IGNORE should ignore the cache. At least for scripts, it seems to use the cache regardless. If the script is loaded with CACHE_MODE_IGNORE before there is anything in the cache, it adds the resource to the cache.

Steps to reproduce

1. Create a new project
2. Create two scripts
3. Have one script load the other twice (one with the cache and one without the cache)
4. Change the source code of the script loaded from the cache
5. Print the source code of the script not loaded from the cache
6. The source code is the same for both

Minimal reproduction project

Cache.zip

[Calinou]

@Hakunamawatta Can you reproduce this in 3.4.4?

[Hakunamawatta]

@Hakunamawatta Can you reproduce this in 3.4.4?

Partially. If you try to ignore the cache before something is loaded in the cache, then ignoring the cache will save it to the cache.

var same = ResourceLoader.load("res://other_script.gd", "", true)
var script = ResourceLoader.load("res://other_script.gd")
script.source_code = "#ASDFGHJKL"
print(same.source_code)

Whereas this doesn't change the source code of "same" because the cache isn't being used when loading:

var script = ResourceLoader.load("res://other_script.gd")
var same = ResourceLoader.load("res://other_script.gd", "", true)
script.source_code = "#ASDFGHJKL"
print(same.source_code)

But if you load from the cache again after ignoring the cache, then the source code of "same" will change (because it's being saved to the cache).

var script = ResourceLoader.load("res://other_script.gd")
var same = ResourceLoader.load("res://other_script.gd", "", true)
script = ResourceLoader.load("res://other_script.gd")
script.source_code = "#ASDFGHJKL"
print(same.source_code)