Glide wrapper by Zeckensack 0.84c - "increase buttons" have a strange toggle-back-effect

ros 0.4.8-RC-14-g10b06f1 gcc dbg
Glide wrapper by Zeckensack 0.84c from rapps

Open the configurator of Zeckensacks Glide wrapper.

There are some buttons next to the "static text elements" to increase the value in steps (kind of buddy-controls).

Expected behavior:
Pressing the button once should already increase the value in the static
2k3sp2.webm

Observed behavior
Pressing the button once increases the value for a fraction of a second, then the value jumps back
0.4.8-RC-14-g10b06f1.webm

Nothing gets logged when doing this.

Note:
Pressing the button for a long time does increase the value like intended.

I guess this has been like this for a long time, I did never test it before.