Sometimes, when I copy text in Core Shell using the trackpad, then paste elsewhere in Core Shell, I get whitespace pasted at the end of each line. I can reduce the whitespace by reducing the terminal window width when I copy - and (bizarrely) it only happens sometimes.
It is really annoying - when I know I have much copying and pasting to do I use one of your competitor's products and it makes me feel dirty!
I just want to flag how much I agree with this being a really big annoyance.
I simply can't copy-and-paste from things like vi when they are running in Core Shell without getting all that white space. The same was not true with CoreSSH, nor is it true when I SSH from the Terminal. It's just Core Shell that behaves like this.
You have steps already, but in case it's helpful, I run into this issue with vi rather than nano/pico, and it's very easy to reproduce:
SSH into any Linux machine
cat /etc/hosts > demo.txt; vi demo.txt
Drag to select the text, copy
Paste into text editor of choice and notice all the white space
:q to exit vi, then optionally rm demo.txt to clean up
I also hit this bug with other commands, but not all commands, for example, selecting multiple lines of output form ls -1 does not result in trailing white space in the clipboard.