`similar` with transpose sparse array is empty

[mattsignorelli]

julia> s = sparse([1, 3, 5, 7, 2, 4, 6, 8, 1, 3, 5, 7, 2, 4, 6, 8, 1, 3, 5, 7, 2, 4, 6, 8, 1, 3, 5, 7, 2, 4, 6, 8], [1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8], Bool[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1], 8, 8)
8×8 SparseMatrixCSC{Bool, Int64} with 32 stored entries:
 1  ⋅  1  ⋅  1  ⋅  1  ⋅
 ⋅  1  ⋅  1  ⋅  1  ⋅  1
 1  ⋅  1  ⋅  1  ⋅  1  ⋅
 ⋅  1  ⋅  1  ⋅  1  ⋅  1
 1  ⋅  1  ⋅  1  ⋅  1  ⋅
 ⋅  1  ⋅  1  ⋅  1  ⋅  1
 1  ⋅  1  ⋅  1  ⋅  1  ⋅
 ⋅  1  ⋅  1  ⋅  1  ⋅  1

julia> similar(s)
8×8 SparseMatrixCSC{Bool, Int64} with 32 stored entries:
 1  ⋅  0  ⋅  0  ⋅  0  ⋅
 ⋅  0  ⋅  0  ⋅  0  ⋅  0
 1  ⋅  0  ⋅  0  ⋅  0  ⋅
 ⋅  0  ⋅  0  ⋅  0  ⋅  0
 0  ⋅  0  ⋅  0  ⋅  0  ⋅
 ⋅  0  ⋅  0  ⋅  0  ⋅  0
 0  ⋅  1  ⋅  0  ⋅  0  ⋅
 ⋅  0  ⋅  1  ⋅  1  ⋅  1

julia> similar(transpose(s))
8×8 SparseMatrixCSC{Bool, Int64} with 0 stored entries:
 ⋅  ⋅  ⋅  ⋅  ⋅  ⋅  ⋅  ⋅
 ⋅  ⋅  ⋅  ⋅  ⋅  ⋅  ⋅  ⋅
 ⋅  ⋅  ⋅  ⋅  ⋅  ⋅  ⋅  ⋅
 ⋅  ⋅  ⋅  ⋅  ⋅  ⋅  ⋅  ⋅
 ⋅  ⋅  ⋅  ⋅  ⋅  ⋅  ⋅  ⋅
 ⋅  ⋅  ⋅  ⋅  ⋅  ⋅  ⋅  ⋅
 ⋅  ⋅  ⋅  ⋅  ⋅  ⋅  ⋅  ⋅
 ⋅  ⋅  ⋅  ⋅  ⋅  ⋅  ⋅  ⋅