wasted horizontal space

[ale-dd]

Here's a column from a table in fancy_outline format. Taken from the current tip of master, such that multiline cells for another column to the right of the offending one work correctly -- and that's the reason for the three empty lines in this column. What I don't like is that there are at least 3 completely white characters to the right of each cell in this column. One would have been enough and the other 2 seem completely unnecessary. I can't find a reason for them and therefore I assume they might be due to a bug.

╤═════════╤
│ k8sCl   │
╪═════════╪
│ main    │
│         │
│ infra   │
│         │
│ main    │
│         │
╧═════════╧