[Reg 5.15.11 -> 5.15.12] Crash when updating shader variable in CustomMaterial

import QtQuick 2.15
import QtQuick3D 1.15
import QtQuick3D.Materials 1.15

CustomMaterial {
    property real exampleProperty: 0.5

    shaderInfo: ShaderInfo {
        version: "330"
        type: "GLSL"
    }

    Shader {
        id: vertShader
        stage: Shader.Vertex
        shader: "shader.vert"
    }

    Shader {
        id: fragShader
        stage: Shader.Fragment
        shader: "shader.frag" // shader.frag uses the value of exampleProperty
    }

    passes: [
        Pass {
            shaders: [
                vertShader, fragShader
            ]
        }
    ]
}

import QtQuick 2.15
import QtQuick3D 1.15
import QtQuick.Window 2.15

Window {
    id: window
    width: 1280
    height: 720
    visible: true
    color: "navy"
    title: "Qt Quick 3D 5.15 Assertion"

    View3D {
        anchors.fill: parent
        camera: camera

        PerspectiveCamera {
            id: camera
            position: Qt.vector3d(0, 100, 150)
            eulerRotation.x: -30
        }
        Model {
            source: "#Sphere"
            scale: Qt.vector3d(1, 1, 1)
            materials: [
                MyCustomMaterial { id: myMaterial }
            ]
        }
    }

    Timer {
        repeat: true
        interval: 250
        running: true
        onTriggered: myMaterial.exampleProperty = Math.random() // This causes a crash
    }
}