[css-grid-3] `grid-template-areas` in masonry

[Loirooriol]

https://drafts.csswg.org/css-grid-3/ seems to assume that the explicit grid has 0 tracks in the masonry axis.

This is usually the case, since grid-template-rows/columns needs to be set to masonry instead of a list of track sizes.
However, grid-template-areas can also add tracks into the explicit grid.

I still don't fully understand how masonry works, but testing in Firefox it seems that grid-template-areas is allowed to name lines but not create explicit tracks.

[fantasai]

Agreed that they should work the same, but that maybe needs clarification in the spec.

[fantasai]

I think at this point actually the spec is pretty clear, given the following statements:

The grid-template-* and grid-auto-rows/grid-auto-columns properties (and their shorthands) apply in the grid axis of the masonry container and establish tracks just as on regular grid containers. (They are ignored in the stacking axis.)

The explicit grid and implicit grid are formed in the same way as for a regular grid container.

@Loirooriol Do you think anything else needs clarification here?