### 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)

_set_tkpos(prev_pos);
				_get_completable_identifier(nullptr, COMPLETION_MAIN_FUNCTION, name);
				if (name == StringName()) {
					if (is_constant) {
						_set_error(RTR("Expected an identifier or '[' after type."));
					} else {
						_set_error(RTR("Expected a function name after type."));
					}
					return ERR_PARSE_ERROR;
				}
				if (shader->structs.has(name) || _find_identifier(nullptr, false, constants, name) || has_builtin(p_functions, name)) {
					_set_redefinition_error(String(name));
					return ERR_PARSE_ERROR;
				}
				tk = _get_token();
				if (tk.type != TK_PARENTHESIS_OPEN) {
					if (type == TYPE_VOID) {
						_set_error(RTR("Expected '(' after function identifier."));
						return ERR_PARSE_ERROR;
					}
					
					while (true) {
						ShaderNode::Constant constant;
						constant.name = name;
						constant.type = is_struct ? TYPE_STRUCT : type;
						constant.type_str = struct_name;
						constant.precision = precision;
						constant.initializer = nullptr;
						constant.array_size = array_size;
						is_const_decl = true;