Arrow colors are not updating correctly

[SebastianM-C]

It looks like the arrowcolor is not updated when the arrows change / update.

MWE:
Consider the following example based on the arrows docs

using WGLMakie

f = Figure(resolution = (800, 800))
Axis(f[1, 1], backgroundcolor = "black")

xs = LinRange(0, 2pi, 20)
ys = LinRange(0, 3pi, 20)
α = Node(0.3)
us = @lift [sin(x) * cos(y) * $α for x in xs, y in ys]
vs = [-cos(x) * sin(y) for x in xs, y in ys]
strength = @lift vec(sqrt.($us .^ 2 .+ vs .^ 2))

arrows!(xs, ys, us, vs, arrowsize = 10, lengthscale = 0.3,
    arrowcolor = strength, linecolor = strength)

f

Now if we update the arows

α[] = 0.9

Now if we create the figure with α[] = 0.9 from the start

Versions:
Makie v0.15.0
WGLMakie v0.4.3

[SebastianM-C]

It seems that the bug might be related to WGLMakie, as in GLMakie it's not present.
I obtained

after the update directly

[SebastianM-C]

It looks like problem is that color range is different for scatter and linesegments in WGLMakie.
MWE

using LinearAlgebra

α = Node(0.3)
pts = rand(Point2f0, 10)
lns = @lift map(pts) do p
    p => Point2f0($α * p)
end
c = @lift $α .* norm.(pts)
f = Figure()
ax = Axis(f[1, 1])
scatter!(ax, pts, marker = '▲', color=c)
linesegments!(ax, lns, color=c)
f

Edit:

The MWE can be further simplified to

α = Node(0.5)
r = collect(1:4)
c = @lift $α .* r
f, ax, p = scatter(1:2:8, 1:2:8, color=c)
ls = linesegments!(1:8, 1:8, color=c)
Colorbar(f[1,2], p) # we can add colorbars to see the color range more clearly
Colorbar(f[1,3], ls)
f

which when we do

α[] = 0.1

results in scatter points to be in the high end of the color range which in turn indicates that the color values remained the same.