Why is Prettier adding this semicolon when I cast something with Typescript?

I'm using Typescript and Prettier and every time I cast something in the first line of the function Prettier puts a semicolon as a first character.

Why? It seems unnecessary. Am I wrong?

I read the Rationale but still I cannot understand why we need to put the first semicolon there.

Prettier 2.2.1 Playground link

--parser typescript
--no-semi

Input:

function example() {
(this as MyType).method() // useless semicolon will be placed here
;(f as any).y = fy // the semicolon here is ok
return f
}

Output:

function example() {
  ;(this as MyType).method() // useless semicolon here
  ;(f as any).y = fy // the semicolon here is ok
  return f
}

Expected behavior:

The first semicolon must not be put.

I opened an issue on the Prettier repo but they suggested I ask here.

***UPDATE:

If I use prettier defaults I have issues too, see this example:

Prettier 2.2.1 Playground link

--parser typescript

Input:

export function inputSelect(e: MouseEvent): void {
    console.log("Test this")
    (e.target as HTMLInputElement)?.select();
}

Output:

export function inputSelect(e: MouseEvent): void {
  console
    .log("Test this")(e.target as HTMLInputElement)
    ?.select();
}

Expected behavior:

It should put the semicolon at the end of the console.log().