Repeated output when pasting multi-line code

[wheeheee]

Also observed in #56884. When a long piece of code (longer than the window size) is pasted or entered into the REPL (on Windows Terminal at least), incomplete portions of it appear like output. Navigating the code afterwards with up and down arrow keys also produces these lines.

Input, pasted or typed, then up-up-down-down arrow keys

julia> function testrepl()
           0
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           0
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           0
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       end

Displayed

julia> function testrepl()
julia> function testrepl()
           0
julia> function testrepl()
           0
julia> function testrepl()
           0
julia> function testrepl()
           0
julia> function testrepl()
           0
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           0
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           9
           0
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       end

[adienes]

I suspect this is windows specific as I'm not able to reproduce on macos

[wheeheee]

It also affects at least gnome-console and gnome-terminal on Fedora.