Moving Slider with right mouse button does not notify

I’m using JUCE 5.3.0. It’s possible to move a JUCE Slider with the right mouse button but the attachment does not send any notifications. I’m not sure if this is a problem in my code. Any help is welcome.

I’m also hitting this.

@jules: according to your commit, updates are prevented if the right mouse button is down. Is this intentional?

also reported here : AudioProcessorValueTreeState::SliderAttachment and RightButtonDown