I was configuring my rail stop blueprint that has parameters for a couple of things. While searching for item, I tried to press ctrl + f to open search, but accidentally hit ctrl + v. That replaced the blueprint with whatever I had in the copy tool, but left parameter configuration open. What I expected to happen is either ctrl + v doing nothing, or the now useless parameter window closing as the blueprint was replaced.
Reproduction steps
Copy something, doesn't matter what
Place down parametrized blueprint
while configuring parameters, press paste hotkey
See the blueprint replaced, while windows stays open
Video to show the process, I've the red belt already copied beforehand, and the blueprint is just a single assembler that produces and requests based on selection. As long as it has some parameters, the configuration window will stay despite blueprint being gone after paste is pressed.