1x1 SDP variables incorrectly sized?

[madeleineudell]

Using 1x1 SDP variables produces some wonky behavior. The problem

using Convex
m = 2
k = 1
AX = rand(m)
AVV = rand(m, k^2)

alpha = Variable()
S = Semidefinite(k)

problem = minimize(sum(alpha*AX + AVV*vec(S)))
c,A,b,cones = conic_problem(problem)
cones

produces a zero cone with an empty index range 2:1:

3-element Array{(Symbol,UnitRange{Int64}),1}:
 (:SDP,1:1) 
 (:Zero,2:1)
 (:Zero,2:2)

Setting k=2 (or greater) fixes the problem.