Trace the completion of a dispatch-sync with a new :sync op-type

For day8/re-frame-10x#263

Author: kimo-k

docs/releases/2023.md

@@ -6,6 +6,12 @@
 
 > The re-frame [Clojars page](https://clojars.org/re-frame/) contains dependency coordinates for Maven/deps/Lein.
 
+## 1.4.1 (2023-12-07)
+
+#### Added
+
+  - `dispatch-sync` now emits a `:sync` trace to indicate when it has finished. See [re-frame-10x#165](https://github.com/day8/re-frame-10x/issues/165)
+
 ## 1.4.0 (2023-11-02)
 
 #### Breaking
@@ -14,7 +20,7 @@
 
 #### Added
   - Interceptors now have an optional `:comment` key. It's a no-op.
-  - `re-frame.std-interceptors/path` now remembers the path it uses in a `:comment`. ((re-frame-10x#165)[https://github.com/day8/re-frame-10x/issues/165])
+  - `re-frame.std-interceptors/path` now remembers the path it uses in a `:comment`. ([re-frame-10x#165](https://github.com/day8/re-frame-10x/issues/165))
   - `re-frame.alpha` namespace, for testing proposed features (see [flows](https://github.com/day8/re-frame/discussions/795) and [polymorphic subscriptions](https://github.com/day8/re-frame/issues/680#issuecomment-1676487563))
 
 #### Changed

src/re_frame/router.cljc

@@ -236,4 +236,5 @@
   [event-v]
   (handle event-v)
   (-call-post-event-callbacks event-queue event-v)  ;; slightly ugly hack. Run the registered post event callbacks.
+  (trace/with-trace {:op-type :sync})
   nil)                                              ;; Ensure nil return. See https://github.com/day8/re-frame/wiki/Beware-Returning-False