BusyIndicator in inconsistent state when running property changed too fast

//test code
import QtQuick 2.12
import QtQuick.Controls 2.12
Item {    
    width: 200    
    height: 200    
    
    Column {        
        anchors.centerIn: parent 
       
        BusyIndicator {            
            id: testIndicator            
            width: 50            
            height: 50            
            onRunningChanged: console.log("onRunningChanged",running)        
        }        

        Button {            
            text: "run test"            
            onClicked: {                
                console.log("lets stop it")                
                testIndicator.running = false                
                console.log("lets start it")                
                testIndicator.running = true            
            }        
         }    
     }
}

qml: lets stop it
qml: onRunningChanged false
qml: lets start it
qml: onRunningChanged true

BusyIndicator { 
    width: 50 
    height: 50
    running: stateDownload.active || stateProgram.active
}