Bug#972344: bash automatically selects the copied text

[王昊然]

I just found another issue with this new BASH/Readline bug/feature.
Even with 'bind "set enable-bracketed-paste off"', BASH 5.1 still
behaving differently from previous versions: if pasted text contains
new lines, BASH 5.1 would still buffering the pasted text, rather than
evaluating the pasted text as commands immediately as I expected. This
behavior is very annoying for me because I'm very used to repeat some
commands quickly by copy-pasting them.