GeneralBC not working when dx is a vector

[cristophermoen]

Hello!

GeneralBC stalls when I try to use a vector for dx instead of a scalar.

I found this example in ../test/robin.jl

G = GeneralBC([-10.0, 1.0, 6.0], [-10.0, 1.0, 6.0], 1.0, 3)

When I modify it to

dx=ones(24)*0.03
G = GeneralBC([-10.0, 1.0, 6.0], [-10.0, 1.0, 6.0], dx, 3)

I get the error

DimensionMismatch("tried to assign 4×4 array to 1×4 destination") at ../src/derivative_operators/BC_operators.jl:115

I am trying to debug. Happy to collaborate with someone to fix this.

Cris