• Copy a component in the schematic editor
  • Switch to the PCB editor
  • Use the middle mouse button to pan the view around
Expected behavior: the view should be panned, but the project should not be changed.
Observed behavior: the view is panned, but the last copied component is also pasted each time you press the middle mouse button.
This is occurring in both Firefox-based and Chromium-based browsers, in Wayland on Arch. I think it likely happens on most distros, because of the windowing system's middle click to paste behavior.