The problem only happens with short lines (or rather, with lines containing short enough *words*), where the editor *wraps* a paragraph, leading it to fit as many words as it can into each line.

    aaaaaaaaaaaaaaaaaaaaaaaaaa
    bbbbbbbbbbbbbbbbbbbbbbbbbb
    cccccccccccccccccccccccccc

Take this and block quote it:

> aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbb
> cccccccccccccccccccccccccc

The editor actually produced:

    > aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbb
    > cccccccccccccccccccccccccc

So, yes, we could fix the editor to *not* do wrapping when quoting. The editor also messes up when unquoting:

    > aaaaaaaaaaaaaaaaaaaaaaaaaa
    > bbbbbbbbbbbbbbbbbbbbbbbbbb
    > cccccccccccccccccccccccccc
Becomes, on unquoting:

aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbb cccccccccccccccccccccccccc

    aaaaaaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbb cccccccccccccccccccccccccc

Yes, this is an editor "feature".