fix(overmind): trigger async event on promise results

Author: christianalfoni

packages/node_modules/overmind/src/index.ts

@@ -37,7 +37,11 @@ export type Action<Value = void> = TAction<App, Value>
 
 export type Context = TContext<App>
 
-export type Derive<Value, Parent = any> = TDerive<App, Value, Parent>
+export type Derive<Value, Parent extends object = {}> = TDerive<
+  App,
+  Value,
+  Parent
+>
 
 export type Reaction = TReaction<App>
 
@@ -527,6 +531,10 @@ export function pipe(...operators) {
           return next(null, operatorContext)
 
         if (operatorContext.value instanceof Promise) {
+          context.execution.emit(EventType.OPERATOR_ASYNC, {
+            ...context.execution,
+            isAsync: true,
+          })
           operatorContext.value
             .then((promiseValue) =>
               run(null, { ...operatorContext, value: promiseValue })