Calculate flow interceptors earlier than user interceptors

Author: kimo-k

docs/releases/2024.md

@@ -6,6 +6,18 @@
 
 > The re-frame [Clojars page](https://clojars.org/re-frame/) contains dependency coordinates for Maven/deps/Lein.
 
+## 1.4.4 (2024-06-24)
+
+#### Changed
+
+    - Changed flows to calculate the new app-db earlier in the chain.
+      - Benefit: user-defined interceptors are aware of the post-flow app-db value.
+      - Drawback: they can't access the value of app-db directly resulting from the event handler.
+      - Drawback: they can't access flow-related effects like `:reg-flow`.
+
+    - Added a :re-frame/pre-flow-db key to the context
+      - This way, user-defined interceptors can still access the app-db value resulting directly from the event handler.
+
 ## 1.4.3 (2024-01-25)
 
 #### Fixed

src/re_frame/alpha.cljc

@@ -423,10 +423,10 @@
   ([id interceptors handler]
    (events/register id [cofx/inject-db
                         fx/do-fx
-                        flow/interceptor
-                        flow/do-fx
                         std-interceptors/inject-global-interceptors
                         interceptors
+                        flow/interceptor
+                        flow/do-fx
                         (db-handler->interceptor handler)])))
 
 (defn reg-event-fx
@@ -463,10 +463,10 @@
   ([id interceptors handler]
    (events/register id [cofx/inject-db
                         fx/do-fx
-                        flow/interceptor
-                        flow/do-fx
                         std-interceptors/inject-global-interceptors
                         interceptors
+                        flow/interceptor
+                        flow/do-fx
                         (fx-handler->interceptor handler)])))
 
 (defn reg-event-ctx
@@ -500,10 +500,10 @@
   ([id interceptors handler]
    (events/register id [cofx/inject-db
                         fx/do-fx
-                        flow/interceptor
-                        flow/do-fx
                         std-interceptors/inject-global-interceptors
                         interceptors
+                        flow/interceptor
+                        flow/do-fx
                         (ctx-handler->interceptor handler)])))
 
 (defn clear-event