ensure the fiber clears _meteor_dynamics

.npmrc

@@ -1,2 +1,2 @@
 always-auth = true
-registry = https://verdaccio.staging.qualia.io/
+registry = https://verdaccio.prod-tools.qualia.io/

fibers_async.js

@@ -9,7 +9,10 @@ if (_Fiber.Fiber) {
 const asyncResourceWeakMap = new WeakMap();
 function Fiber(fn, ...args) {
   const ar = new AsyncResource('Fiber');
-  const actualFn = (...args1) => ar.runInAsyncScope(() => fn(...args1));
+  const actualFn = (...args1) => ar.runInAsyncScope(() => {
+    Fiber.current._meteor_dynamics = undefined;
+    fn(...args1);
+  });
   const _fiber = _Fiber(actualFn, ...args);
   asyncResourceWeakMap.set(_fiber, ar);
   return _fiber;

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "fibers",
-	"version": "5.0.2-5",
+	"version": "5.0.2-6",
 	"description": "Cooperative multi-tasking for Javascript",
 	"keywords": [
 		"fiber",