vscode: Can't replace with regex containing lookaround that matches across lines

Issue Type: Bug

Find:

import type \{ (\w+) \}

Replace

import { $1 }

Does what you expect, and turns import type { Test } into import { Test } but if you use the regex which includes back references

import type \{ (\w+) \}(?=[\s\S]*(new \1\(|\b\1\.|instanceof \1\b|\b\1\())

And replace with the same

import { $1 }

import type { Test } into import { $1 }

I cannot seem to find a way to cheese the system

Test example

import { A } from './A';
import type { B } from './B';
import { C } from './C';
import type { D } from './D';
import { E } from './E';
import type { F } from './F';
import { G } from './G';
import type { H } from './H';

B();
D.hello();
instanceof F()

In-file find and replace works perfectly fine. 👍

But the ‘find in files’ one breaks 👎

VS Code version: Code 1.57.1 (507ce72a4466fbb27b715c3722558bb15afa9f48, 2021-06-17T13:28:07.755Z) OS version: Windows_NT x64 10.0.19043 Restricted Mode: No

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