fix reshape

Author: lkdvos

src/tensors/abstracttensor.jl

@@ -644,6 +644,7 @@ function project_symmetric!(t::AbstractTensorMap, data::AbstractArray)
     matsize = (dim(codom), dim(dom))
     (size(data) == arraysize || size(data) == matsize) ||
         throw(DimensionMismatch("input data has incompatible size for the given tensor"))
+    data = reshape(collect(data), arraysize)
 
     I = sectortype(t)
     if I === Trivial && t isa TensorMap

src/tensors/tensor.jl

@@ -219,11 +219,10 @@ function _TensorMap{T, A}(
 
     # do projection
     t = _TensorMap{T, A}(undef, V)
-    arraydata = reshape(collect(data), arraysize)
-    t = project_symmetric!(t, arraydata)
+    t = project_symmetric!(t, data)
 
     # verify result
-    isapprox(arraydata, convert(Array, t); atol = tol) ||
+    isapprox(reshape(data, dims(t)), convert(Array, t); atol = tol) ||
         throw(ArgumentError("Data has non-zero elements at incompatible positions"))
 
     return t