fix(overmind): move derived message passing to correct place

Author: christianalfoni

packages/node_modules/overmind/src/derived.ts

@@ -41,6 +41,12 @@ class Derived {
           }
         )
       }
+      eventHub.emit('derived', {
+        path,
+        paths: Array.from(this.paths),
+        updateCount: this.updateCount,
+        value: this.value,
+      })
       this.updateCount++
     }
 
@@ -49,13 +55,6 @@ class Derived {
       proxyStateTree.addTrackingPath(path)
     }
 
-    eventHub.emit('derived', {
-      path,
-      paths: Array.from(this.paths),
-      updateCount: this.updateCount,
-      value: this.value,
-    })
-
     return this.value
   }
 }