Bug report: Undo Plot plugin

Try the following:

Draw any shape with a tool. For example a circle.
Then draw something using Plugins -> Plot plugin. For example a parabola.
Then click Undo.
Circle is undone and not parabola.
There seems to be no way to undo the result of the Plot plugin.


My configuration:

LibreCAD, from "About" section:
LibreCAD 2.2.1.1
Compiler: GNU GCC 14.2.0
Qt Version: 5.15.15
Boost Version: 1.80.0

Flatpak version

My system:
AlmaLinux 9.6
KDE Plasma Version: 5.27.11
KDE Framework Version: 5.115.0
Qt Version: 5.15.9
Kernel Version: 5.14.0
Graphics Platform: X11

NVidia graphics driver