JavaScript: Update an attribute of object and remove duplicate in array

Question

I have an array of objects like this:

[
    {
        name: "test",
        type: ['R'],
    },
    {
        name: "test2",
        type: ['D'],
    },
    {
        name: "test",
        type: ['B'],
    },
    {
        name: "test3",
        type: ['R'],
    },
    {
        name: "test2",
        type: ['A'],
    },
]

and I want to remove duplicates and update the type with all validated types to be like this:

[
    {
        name: "test",
        type: ['R', 'B'],
    },
    {
        name: "test2",
        type: ['D', 'A'],
    },
    {
        name: "test3",
        type: ['R'],
    },
]

I try to use the filter function and it removes duplicates but on the update is a duplicate of the same type

array.filter((o,i,os)=>(os.findIndex(v2=>(v2.name===o.name && ( o.type = o.name.concat(v2.type) ) )))===i)

is there any solution?