Tests using custom first/last tread runs were not setting
custom_tread_lock=False, so the custom values were silently ignored
since 8f7cf76d9 introduced the lock gate in the calculation.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
`get_active_stair_calculated_params` wasn't updated when zero tread runs support was added and it's still was relying on a convention that `0.0` custom tread run = no custom tread run.
Previously some of them were saved only for current .blend file, moving them to preferences will make it more consistent with usual Blender UX. If needed we'll be able to add some way to fine-grain them later.
There's also a temporary patch that's going to migrate old .blend-props to new preferences-props to make process less disruptive.
People kept on getting confused with the align tool thinking it changed
the baseline to reference line offset whereas it actually just aligned
the object bodies. This tool now does exactly that.
Also start refactoring the "DumbWall" classes into the tools so we can
test them properly.
1) avoid calling geometry.xxx multiple times as each time it creates a new copy
2) use numpy arrays with correct data type, so Blender could perform buffer copy significantly reducing overhead
The fix in 0899a2a8 ensured that when you switched geometry, all other
elements (sharing the same type or representation) would also switch
alongside it. However it would lead to mesh invalidation which broke
some assumptions in the style code. The style code also repeated a lot
of the logic of switch representation (i.e. finding shared
representations) so this seems simpler.
In general the whole representation part of the code is messy and
hopefully over time it'll get better.
Dion Moult