qmlls fails to parse some QML modules and C++ types when there is more than one QML module in a directory

# CMakeLists.txt

cmake_minimum_required(VERSION 3.16)

set(CMAKE_CXX_STANDARD 23)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_AUTOMOC ON)
set(CMAKE_INCLUDE_CURRENT_DIR ON)

project(
  qmlls_import_bug_toplevel
  VERSION 0.1
  LANGUAGES CXX)

find_package(Qt6 6.8 REQUIRED COMPONENTS Core Widgets Gui Quick)

qt_standard_project_setup(REQUIRES 6.8)

qt_add_library(MyModule STATIC)
qt_add_qml_module(
  MyModule
  URI "MyModule"
  VERSION 1.0
  DEPENDENCIES QtQuick)

target_link_libraries(MyModule PUBLIC Qt6::Quick Qt6::Core)

qt_add_executable(MyModule_tests tst_main.cpp Something.h)

qt_add_qml_module(
  MyModule_tests
  URI "MyModule_tests"
  VERSION 1.0
  DEPENDENCIES QtQuick
  QML_FILES Main.qml)

target_link_libraries(MyModule_tests PRIVATE MyModule MyModuleplugin)

// Something.h
#pragma once

#include <QObject>
#include <QtQmlIntegration>

class Something : public QObject
{
    Q_OBJECT
    QML_ELEMENT
public:
    inline explicit Something(QObject *parent = nullptr) { qDebug() << "Something created"; }

signals:
};

// tst_main.cpp
#include <QGuiApplication>
#include <QQmlApplicationEngine>

int main(int argc, char **argv)
{
    QGuiApplication app{argc, argv};
    QQmlApplicationEngine engine;
    QObject::connect(
        &engine,
        &QQmlApplicationEngine::objectCreationFailed,
        &app,
        []() { QCoreApplication::exit(-1); },
        Qt::QueuedConnection);
    engine.loadFromModule("MyModule_tests", "Main");

    return app.exec();
}

// Main.qml

import QtQuick 2.15
import MyModule_tests

Window {
    id: root
    width: 640
    height: 480
    visible: true

    QtObject {
        id: obj
        property var obj: Something {}
    }

    Component.onCompleted: {
        if (obj.obj) {
            console.log("There is something in obj");
        }
    }
}

# CMakeLists.txt

cmake_minimum_required(VERSION 3.16)

set(CMAKE_CXX_STANDARD 23)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_AUTOMOC ON)
set(CMAKE_INCLUDE_CURRENT_DIR ON)

project(
  qmlls_import_bug_toplevel
  VERSION 0.1
  LANGUAGES CXX)

find_package(Qt6 6.8 REQUIRED COMPONENTS Core Widgets Gui Quick)

qt_standard_project_setup(REQUIRES 6.8)

qt_add_executable(MyModule_tests tst_main.cpp Something.h)

qt_add_qml_module(
  MyModule_tests
  URI "MyModule_tests"
  VERSION 1.0
  DEPENDENCIES QtQuick
  QML_FILES Main.qml)

target_link_libraries(MyModule_tests PRIVATE Qt6::Quick Qt6::Core)