Closed bspline node duplicates itself unexpectedly

[Discrete Games]

Often when I'm tweaking the nodes on a closed bspline path, the node that was the original start of the path will duplicate itself in place unexpectedly, messing up the path curvature (but keeping it closed). It does not always happen, in fact it seems fairly random, but it is quite frequent.

Here's a video of what I mean: https://youtu.be/KoOQi8TJhOQ

See how at the 42sec mark (https://youtu.be/KoOQi8TJhOQ?t=42s) I move a node and another node duplicates itself. It happens several more times.
In the video I was only using left-click. I did not double-click to add any of the nodes that somehow appear.

Certain actions seem to trigger the duplication, like moving another node or moving the entire shape. Sometimes when opening a file I find these duplicate nodes on shapes when I'm sure they weren't there when I closed the file.

I'm using Windows 10 Home 64-bit with Inkscape 0.92.3 (2405546, 2018-03-11). It happened in 0.92.2 as well.

Original question: https://answers.launchpad.net/inkscape/+question/667633

[Discrete Games (discretegames)]

This appears the same bug as https://bugs.launchpad.net/inkscape/+bug/1482907 from 2015.

(I would close this as a duplicate of that bug if I knew how.)

[Alvin Penner (apenner)]

marking as duplicate