Fix issue found by Copilot related to set_va!

Author: ufechner7

src/body_aerodynamics.jl

@@ -129,8 +129,10 @@ function Base.getproperty(obj::BodyAerodynamics, sym::Symbol)
 end
 
 function Base.setproperty!(obj::BodyAerodynamics, sym::Symbol, val)
-    if sym === :va || sym === :omega
+    if sym === :va
         set_va!(obj, val)
+    elseif sym === :omega
+        set_va!(obj, obj._va, val)
     else
         setfield!(obj, sym, val)
     end
@@ -1041,6 +1043,7 @@ Set velocity array and update wake filaments.
 function set_va!(body_aero::BodyAerodynamics, va::AbstractVector, omega=zeros(MVec3))
     n_panels = length(body_aero.panels)
     va_distribution = zeros(n_panels, 3)
+    body_aero.omega .= omega
 
     if all(iszero, omega)
         va_distribution .= repeat(reshape(va, 1, 3), n_panels)

test/body_aerodynamics/test_body_aerodynamics.jl

@@ -493,6 +493,17 @@ end
         expected_va = va .+ (-omega × panel.control_point)
         @test panel.va ≈ expected_va atol=1e-12
     end
+    @test body_aero.omega ≈ omega
     @test body_aero.has_distributed_va
     @test_throws ArgumentError body_aero.va
+
+    new_omega = [0.0, 0.0, 2.0]
+    reference_va = copy(body_aero._va)
+    body_aero.omega = new_omega
+
+    for panel in body_aero.panels
+        expected_va = reference_va .+ (-new_omega × panel.control_point)
+        @test panel.va ≈ expected_va atol=1e-12
+    end
+    @test body_aero.omega ≈ new_omega
 end