Eltwise layer with inplace operation

[xieguotian]

I have a modified layer EltwiseLayer that do inplace operation in the first bottom data and top data. In this case , this layer can't be shown correctly. Can the code fix for this case, please?

layer {
bottom: "bn4_2"
bottom: "bn4a"
top: "bn4_2"
name: "res4_2"
type: "Eltwise"
}