QShaderProgram logChanged and statusChanged report nothing with Qt3DExtras meshes and custom meshes.

Both logChanged and statusChanged signals in QShaderProgram class report nothing in case the material this shader program exists on is applied on a mesh loaded by QMesh class.

But when using any mesh from Qt3DExtras package, or if I made a custom mesh myself, and used that same material with that same shader program on it, those two signals report nothing at all.

I provided a script that triggers this problem, it defines a Qt3DExtras.CubiodMesh and all the needed setup to load it with a QTextureMaterial, and it connects all shader program signals to a print statement, and sets their shader codes to a dummy ones to trigger errors.

It has a commented out line to load a gltf file I provided for a cube using QMesh, you can uncomment it and comment the Qt3DExtras.CubiodMesh definition to see that those signals works only in that case.