### Godot version

any version after 74458b6

### System information

Linux x64, but likely irrelevant

### Issue description

OpenXR action maps are not properly exported in recent builds of Godot 4: the `.res` file is small and does no longer seem to contain anything of use. In-game, no actions are passed on to OpenXR (obviously).

I bisected the issue down to https://github.com/godotengine/godot/commit/74458b6e9bed0f28db3374c7406eacbcf4b09b9d, which was merged in #70377.

### Steps to reproduce

1. Delete any previous export files (`.godot/exported/*/*.pkg`)
2. Perform an export (I did one for Android, but it likely works with anything)
3. Observe OpenXR actions not working in the export (error spam 'sync_action_sets: Condition "active_sets.size() == 0"'), and the exported action map file being very small (`.godot/exported/*/*.pkg`, from a few tens of kilobytes down to 296 bytes)

### Minimal reproduction project

Any OpenXR project can be used, such as https://github.com/BastiaanOlij/godot4_openxr_demo
}
	} else {
		p_log->add_image(EditorNode::get_singleton()->get_gui_base()->get_theme_icon(SNAME("StatusError"), SNAME("EditorIcons")), 16 * EDSCALE, 16 * EDSCALE, Color(1.0, 1.0, 1.0), INLINE_ALIGNMENT_CENTER);
		p_log->add_text(" ");
		p_log->add_text(TTR("Failed."));
		has_messages = true;
	}
	p_log->add_newline();
	if (msg_count) {
		p_log->push_table(2);
		p_log->set_table_column_expand(0, false);
		p_log->set_table_column_expand(1, true);
		for (int m = 0; m < msg_count; m++) {
			EditorExportPlatform::ExportMessage msg = get_message(m);
			Color color = EditorNode::get_singleton()->get_gui_base()->get_theme_color(SNAME("font_color"), SNAME("Label"));
			Ref<Texture> icon;
			switch (msg.msg_type) {
				case EditorExportPlatform::EXPORT_MESSAGE_INFO: {
					color = EditorNode::get_singleton()->get_gui_base()->get_theme_color(SNAME("font_color"), SNAME("Editor")) * Color(1, 1, 1, 0.6);
				} break;
				case EditorExportPlatform::EXPORT_MESSAGE_WARNING: {
					icon = EditorNode::get_singleton()->get_gui_base()->get_theme_icon(SNAME("Warning"), SNAME("EditorIcons"));
					color = EditorNode::get_singleton()->get_gui_base()->get_theme_color(SNAME("warning_color"), SNAME("Editor"));
				} break;
				case EditorExportPlatform::EXPORT_MESSAGE_ERROR: {
					icon = EditorNode::get_singleton()->get_gui_base()->get_theme_icon(SNAME("Error"), SNAME("EditorIcons"));
					color = EditorNode::get_singleton()->get_gui_base()->get_theme_color(SNAME("error_color"), SNAME("Editor"));
				} break;
				default:
					break;