fix: make node:crypto Hash.copy work correctly (#2761)

This commit will also:
- add a CryptoHasher.copy function
- make CryptoHasher.digest reset the hasher so it can be reused

Resolves #2651

1 files changed, 3 insertions, 1 deletions

diff --git a/src/bun.js/crypto.exports.js b/src/bun.js/crypto.exports.js
index 4001179e8..95e6674e8 100644
--- a/src/bun.js/crypto.exports.js
+++ b/src/bun.js/crypto.exports.js
@@ -1182,7 +1182,9 @@ var require_browser2 = __commonJS({
       }
 
       copy() {
-        return new CryptoHasher(this.#algorithm);
+        const copy = new Hash(this.#algorithm);
+        copy.#hasher = this.#hasher.copy();
+        return copy;
       }
     }