### Godot version

4.0.3.stable

### System information

Windows 11, ask for more info if needed, I'm not sure what else would be needed here.

### Issue description

Issue also asked about on Godot Q&A (currently unresolved): https://ask.godotengine.org/155740/godot-automatically-creating-tabs-script-template-how-that

I have a script template that I use for all my scripts. In this template, I have an instance of a long line of spaces leading to a comment (this is my commenting method of choice, putting all comments on the right). Looks like (without underscores, would be spaces):
my code  _    _    _    _    _    _    _    _    _    _    _    # my comment

It worked perfectly in prior versions, though after switching to Godot 4 it has started converting my groups of spaces into tabs. It now looks like this (with the indent carrots), despite me only including spaces there in my .gd file:
my code  >    >    >    >    >    >    >    >    >       # my comment

I cannot find a way to disable this "feature" and believe it to truly be a bug. Mr. J. Godfrey (a Godot contributor/Q&A admin I think?) believes so as well. I have taken a look at the indentation section of the editor settings but this is a different feature. I like tabs for indents, and am not trying to change that. I just don't want Godot to auto-change my spaces into indents when it sees a group of them. I understand others may, so I'm proposing there is an option created for that (or please inform me of which one it is if it exists). When I create/edit this template in Notepad, I'm able to verify that it is indeed just normal spaces.

### Steps to reproduce

1) Go to this link and download the script template I created (this program won't let me attach a .gd for some reason):
https://drive.google.com/file/d/1oXPKAn_3DulkF2oIFNYTFV3QKuNKdGz-/view?usp=sharing

2) Load it into a folder called "Objects" within your script templates folder (you may need to create this folder, found at *Godot master folder location*...Godot Engine\editor_data\script_templates\

3) Create a new script in Godot 4.0.3.stable and select this file as the template. You may need to create it on a node, type shouldn't matter.

4) Open the new script and see that the "extends" line has a bunch of tab indents when it should just be spaces.

### Minimal reproduction project

N/A, this is trivial
const ScriptLanguage::ScriptTemplate &sinfo = _get_current_template();
	
	if (is_using_templates && !parent_name->get_text().begins_with("\"res:")) {
		if (sinfo.origin == ScriptLanguage::TemplateLocation::TEMPLATE_PROJECT) {
			
			Dictionary dic_templates_project = EditorSettings::get_singleton()->get_project_metadata("script_setup", "templates_dictionary", Dictionary());
			dic_templates_project[parent_name->get_text()] = sinfo.get_hash();
			EditorSettings::get_singleton()->set_project_metadata("script_setup", "templates_dictionary", dic_templates_project);
		} else {
			
			Dictionary dic_templates;
			if (EditorSettings::get_singleton()->has_meta("script_setup_templates_dictionary")) {
				dic_templates = (Dictionary)EditorSettings::get_singleton()->get_meta("script_setup_templates_dictionary");
			}
			dic_templates[parent_name->get_text()] = sinfo.get_hash();
			EditorSettings::get_singleton()->set_meta("script_setup_templates_dictionary", dic_templates);
			
			Dictionary dic_templates_project = EditorSettings::get_singleton()->get_project_metadata("script_setup", "templates_dictionary", Dictionary());
			if (dic_templates_project.has(parent_name->get_text())) {
				dic_templates_project.erase(parent_name->get_text());
				EditorSettings::get_singleton()->set_project_metadata("script_setup", "templates_dictionary", dic_templates_project);
			}
		}
	}
	
	String template_info = String::utf8("•  ");
	template_info += TTR("Template:");
	template_info += " " + sinfo.name;
	if (!sinfo.description.is_empty()) {