`_on_button_released` handler of `SmoothScale` is not called
_on_button_released method of
SmoothScale does not seem to be called when the user releases the button. I verified this by inserting a simple print statement into the
_on_button_released handlers, and only the
_pressed one actually prints.
I noticed this because I am writing a music player myself, and I had some trouble with my progress bar myself, so I wanted to see how other implementations deal with this. When I asked about my problem in a chat, I was linked to this line as a source of this behavior.
I am not sure if or what impact this actually has on the functionality of the application, but I would be interested if it's possible to fix.