Map Buildings next to each other with a space between them?

I have heard in mapathons (And I think it is something many people do) that adjacent buildings should be mapped with separated nodes and a small space between them (even if there is no space between them). Like this:

 x-------x
 |       |
 |       | x----x
 |       | |    |
 |       | |    |
 x-------x x----x

However, I have always mapped adjacent buildings like that.

 x-------x
 |       |
 |       x----x
 |       |    |
 |       |    |
 x-------x----x

For example, this kind of house, even when they have different architecture (not terraces - very similar architecture for all adjacent houses).
https://www.mapillary.com/app/?pKey=1476776676184810

I prefer the second way (that I have been using), but I want to confirm because proposing to map with different nodes to newcomers makes the mapping more complex.

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Ce sujet de discussion accompagne la publication sur https://community.openstreetmap.org/t/map-buildings-next-to-each-other-with-a-space-between-them/97927