Misc

language: "plaintext"

If the wrapping column is set at < 1, it behaves as if it's infinite (everything is "unwrapped").

a        ->      a b c
b c              ¦
¦                ¦

If there are several blocks where the prefix on the first line is different, this must be handled correctly when lines are added to a one-line block

language: "markdown"

* - + triple bullet      ->      * - + triple  ¦
              ¦                        bullet  ¦