The width attribute is indeed not added as sen in the excerpt from LeoNerd. But I have found the following:
1. When the board is saved, it will save without the width attribute.
2. When the board is opened again pcbnew will assign the default width of (width 0.15)
So saving and opening it again is a workaround.
It still needs to be assigned a width on load, such that the width is always known, IMHO.
The width attribute is indeed not added as sen in the excerpt from LeoNerd. But I have found the following:
1. When the board is saved, it will save without the width attribute.
2. When the board is opened again pcbnew will assign the default width of (width 0.15)
So saving and opening it again is a workaround.
It still needs to be assigned a width on load, such that the width is always known, IMHO.