Duplicating a part when changing parameters

I don’t speak English so I use google translator.

Steps I took that resulted in the problem:

When changing the parameters of a part with the mouse wheel, the part is cloned.
If you change the parameters with the left mouse button, this does not happen.

What I expected should have happened instead:

My version of Fritzing and my operating system:

Fritzing 0.9.8, Windows 10

Link to Google Disc with the video file of the problem, perhaps this will make it clearer.

This is a known problem. Reported in this issue on github.

The current work around is to not use the mouse wheel to change parameters.