Touchpad double click while editing bug

[joao-mambelli]

While testing the #122 issue with my notebook, I found a weird bug where double clicking an element using the touchpad (not using the touchpad buttons, it's using the touch sensor) while in edit mode made the elements disapear.

[ThoNohT]

That's really strange. I don't have any distinction between mouses and touch pads, but I guess I could do some testing on a laptop to see what happens exactly (if I can reproduce it).