quic: fix fin handling, so it is broken

Author: martenrichter

lib/internal/blob.js

@@ -582,7 +582,9 @@ async function* createBlobReaderIterable(reader, options = kEmptyObject) {
   const { getReadError } = options;
   let wakeup = PromiseWithResolvers();
   let immediate;
-  reader.setWakeup(() => {
+  let fin = false;
+  reader.setWakeup((setfin) => {
+    fin ||= setfin;
     if (typeof immediate === 'undefined') {
       // Postpone the execution to the next steps of the event loop
       immediate = setImmediate(() => {
@@ -635,7 +637,7 @@ async function* createBlobReaderIterable(reader, options = kEmptyObject) {
       if (error) throw error;
 
       if (blocked) {
-        const fin = await wakeup.promise;
+        await wakeup.promise;
         wakeup = PromiseWithResolvers();
         // If the wakeup was triggered by FIN (EndReadable), the DataQueue
         // is capped. Continue the loop to pull again -- the next pull will