"Extract into Function" removes whitespace

[gamma-delta]

rust-analyzer version: rust-analyzer 1.67.0-nightly (83356b7 2022-11-17)

rustc version: rustc 1.67.0-nightly (83356b78c 2022-11-17)

relevant settings: nothing out of the ordinary, I think, but I'm using this in Helix

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Expected behavior: using the Extract into Function action extracts the highlighted code into a function exactly without changing whitespace/newlines.

Behavior: it removes newlines.

fn some_long_function() {
  let foo = bar();
  let bax = quux();

  // If I highlight from here ... {
  let foo2 = foo * 2;

  let frob = baz.frobnicate();
  frob.process();
  // } to here, and extract into function,
  // the newline after `let foo2 = foo*2` is removed.
}

I think it does make sense to auto-format the code because it'll format on save anyways (hopefully), but it is kind of weird for the newlines to disappear because then I have to go back and insert all the newlines again ... I'd imagine that's tricky to implement though (I don't know about rust-analyzer's internals but I'd imagine this action operates on the AST more than text).