Problem - offset collision check for bevels did not consider the reduced
offset when using bevel edge weights, thus greatly reducing the allowed offset.
Solution - calculate the offset check using the weighted value and not
the full offset.
Alternatives - Since this error was introduced in the patch dd334faa58
a solution would be to revert the patch. This is not optimum since the
patch did correct the inf/inf condition in the offset calculation (ex at
90 degs, tan is 1/0).
Limitations - This patch is a correction to return the bevel function to
it's previous abilities. Further work is needed to properly handle edge
offset interference when looking at n-gons with reflex angles. There are
also situations where the bevel operation exceeds the checked offset distance
(exs. inner arc spread and bevel profiles that are not normal to the bevelled edge).
379fffaf0d