Undo Button Hides Immediately After Polygon Is Edited

[crazyman974]

Hi,
The undo button which which is shown after a polygon point is edited (dragged) displays and then immediately hides when ever a polygon point is edit (dragged), creating a flickering effect. This can be seen in the main example when you try to drag a polygon point. Would it be possible to display this undo button or to at least hide it completely?

Thanks!

[rummelsworth]

I'm seeing this, too. I can reproduce the behavior on the very first drag of a vertex of the blue polygon at the main example. Subsequent drags do not flicker the undo button. Fwiw, I can only re-reproduce this behavior after a hard page reload.

After no more than three successful reproductions, I can no longer reproduce the flickering. Cleared caches, hard reloads, different browsers; no repro. However, there does seem to be a problem here in that the undo button isn't shown at all.