### Godot version

4.0.stable.mono

### System information

Windows 10, NVIDIA RTX 2060 (Driver 30.0.14.7284), Vulkan 1.2.175 Forward+ (Editor)

### Issue description

When changing certain Global Shader Parameters (in this case, a mat4) in the Project Settings, the value sent to the editor 3D view appears to be undefined, resulting in garbage values sent to the shaders.

As an example here, I'm using a mat4 to describe global light directions for a lighting shader
Note that the shader receives a different value even when the editor is being set to the same values
https://user-images.githubusercontent.com/44537737/222551889-b7c7ca63-ef65-484c-818f-c6ce47a7d3c0.mp4

Setting the global parameter from a script does pass the correct value to the shaders
![image](https://user-images.githubusercontent.com/44537737/222552338-14582898-a76d-4ec4-b877-7b822e414901.png)

I have also determined the shaders in the editor also do not get correct values from the `project.godot` when loading the project.

### Steps to reproduce

- Create a Global Shader Parameter of mat4 type (Project > Project Settings... > Shader Globals)
- Create a shader that visualizes the value of the mat4 (`global uniform mat4 global_mat`)
- Attempt to modify the global in the same Project Settings menu, the shader will receive garbage values

### Minimal reproduction project

[GlobalShaderParameters.zip](https://github.com/godotengine/godot/files/10875801/GlobalShaderParameters.zip)

}
			DataPrecision precision = PRECISION_DEFAULT;
			if (is_token_precision(tk.type)) {
				precision = get_token_precision(tk.type);
				tk = _get_token();
				if (!is_struct) {
					is_struct = shader->structs.has(tk.text); 
				}
#ifdef DEBUG_ENABLED
				if (keyword_completion_context & precision_flag) {
					keyword_completion_context ^= precision_flag;
				}
#endif 
			}
#ifdef DEBUG_ENABLED
			if (is_const && _lookup_next(next)) {
				if (is_token_precision(next.type)) {
					keyword_completion_context = CF_UNSPECIFIED;
				}
				if (is_token_datatype(next.type)) {
					keyword_completion_context ^= CF_DATATYPE;
				}
			}
#endif 
			if (precision != PRECISION_DEFAULT) {
				if (!is_token_nonvoid_datatype(tk.type)) {
					_set_error(RTR("Expected variable type after precision modifier."));
					return ERR_PARSE_ERROR;
				}
			}