Solve TS error and tweak wording

source/core/Ky.ts

@@ -35,8 +35,8 @@ export class Ky {
 
 			// Delay the fetch so that body method shortcuts can set the Accept header
 			await Promise.resolve();
-			// Before using ky.request, _fetch clones a new Request for retries preparation.
-			// If retry is not needed, close the original Request ReadableStream for memory safety.
+			// Before using ky.request, _fetch clones it and saves the clone for future retries to use.
+			// If retry is not needed, close the cloned request's ReadableStream for memory safety.
 			let response = await ky._fetch();
 
 			for (const hook of ky._options.hooks.afterResponse) {
@@ -65,10 +65,9 @@ export class Ky {
 				throw error;
 			}
 
-			// Now, it can be determined that a retry is not needed,
-			// close the ReadableStream of the ky.request.
+			// Now that we know a retry is not needed, close the ReadableStream of the cloned request.
 			if (!ky.request.bodyUsed) {
-				await ky.request.arrayBuffer();
+				await ky.request.body?.cancel();
 			}
 
 			// If `onDownloadProgress` is passed, it uses the stream API internally