### Godot version

v4.0.beta.custom_build [fab9926a9]

### System information

Fedora 37

### Issue description

When creating a new inherited scene, saving the scene (for example with Ctrl+S) defaults to overwriting the scene being inherited, instead of prompting for a location to save to.

### Steps to reproduce

1. Create a new inherited scene
2. Press Ctrl+S

If the scene being inherited is imported (for example from a glTF), an error displays. If the inherited scene is a .tscn or .scn, it gets overridden by an inherited scene that tries to inherit itself, which is impossible and thus corrupt.

### Minimal reproduction project

N/A
if (!docks_visible) {
		for (int i = 0; i < DOCK_SLOT_MAX; i++) {
			dock_slot[i]->hide();
		}
		for (int i = 0; i < vsplits.size(); i++) {
			vsplits[i]->hide();
		}
		right_hsplit->hide();
	} else {
		for (int i = 0; i < DOCK_SLOT_MAX; i++) {
			int tabs_visible = 0;
			for (int j = 0; j < dock_slot[i]->get_tab_count(); j++) {
				if (!dock_slot[i]->is_tab_hidden(j)) {
					tabs_visible++;
				}
			}
			if (tabs_visible) {
				dock_slot[i]->show();
			} else {
				dock_slot[i]->hide();