Q3DScatter Memory Leak

When using Scatter3D with optimizationHints set to OptimizationStatic there is a memory leak every time the data is updated.

How it occured:

1. I render a Scatter3D-component in QML and use addSeries() to connect it to a QScatter3DSeries in c++.
2. I set optimizationHints to OptimizationStatic.
3. Then I regurarly update the series with new data using resetArray().
4. Every time the data is updated my RAM fills up more. I send around 200 000 points every time.

After some debugging and testing I think the bug is caused by the buffers never being deleted. Here is the lead that I followed:

1. When the scatter-data is updated, the updateData()-method of "scatter3drenderer.cpp" is called.
2. Then if opimizationHints are OptimizationStatic and mesh is not MeshPoint, the buffers are updated using the fullLoad()-method from "scatterobjectbufferhelper.cpp" shown below.
3. As you can see in the first line of the method, m_meshDataLoaded is set to false.
4. Then further down, without any changes to m_meshDataLoaded, the buffers are deleted only if m_meshDataLoaded is true. This means that the buffers are never deleted.
5. I tested changing the if-statement from checking for true into checking for false and this removed the memory leak, but I am unfamiliar with the meaning behind this if-statement so I don't know what would be a good solution.
6. Looking to the equivalent load()-method for MeshPoint in "scatterpointbufferhelper.cpp", it deletes the buffers in a similar fashion, but it doesn't set m_meshDataLoaded to false first.

scatterobjectbufferhelper.cpp:

void ScatterObjectBufferHelper::fullLoad(ScatterSeriesRenderCache *cache, qreal dotScale)
{
    m_meshDataLoaded = false;
    m_indexCount = 0;

    ObjectHelper *dotObj = cache->object();
    const ScatterRenderItemArray &renderArray = cache->renderArray();
    const uint renderArraySize = renderArray.size();

    if (renderArraySize == 0)
        return;  // No use to go forward

    uint itemCount = 0;
    QQuaternion seriesRotation(cache->meshRotation());

    if (m_meshDataLoaded) {
        // Delete old data
        glDeleteBuffers(1, &m_vertexbuffer);
        glDeleteBuffers(1, &m_uvbuffer);
        glDeleteBuffers(1, &m_normalbuffer);
        glDeleteBuffers(1, &m_elementbuffer);
        m_vertexbuffer = 0;
        m_uvbuffer = 0;
        m_normalbuffer = 0;
        m_elementbuffer = 0;
    }
    .
    .
    .