[css-grid] Editorial: 12.1 Grid Sizing Algorithm

The first step states the following:

"If calculating the layout of a grid item in this step depends on the
available space in the *row axis*, assume the available space that it
would have if any row with a definite max track sizing function had that
size and all other rows were infinite."

I guess that the statement above is intended to address sizing when
there are  orthogonal grid items; hence column tracks breadth would
depend on item's logical height. This would need such item to be laid
out, based on the available space of the row tracks it occupies along
the *column-axis*  .

--
Javi