I'm using Emacs 26.1 on MacOS. Instead of copying the entire buffer I get a warning:
Saved text until "text where is stopped saving with whitespace seemingly to the end of the buffer "
I'm doing this with
M-w (default bindings for those commands).
I have a workaround:
RET works fine, and I'm kind of OK with rebinding
copy-region-as-kill. I would however like to know if there are other implications that I've not thought of, and what is causing the trouble in the first place.