fix(overmind): clean up derived references when reconfiguring with hot reloading

Author: christianalfoni

packages/node_modules/overmind/src/index.ts

@@ -194,7 +194,7 @@ export class Overmind<ThisConfig extends IConfiguration>
   private nextExecutionId: number = 0
   private mode: DefaultMode | TestMode | SSRMode
   private originalConfiguration
-  private derivedReferences: Derived[] = []
+  private derivedReferences: any[] = []
   initialized: Promise<any>
   eventHub: EventEmitter<Events>
   devtools: Devtools
@@ -840,6 +840,7 @@ export class Overmind<ThisConfig extends IConfiguration>
     this.derivedReferences.forEach((derived) => {
       derived.dispose()
     })
+    this.derivedReferences.length = 0
     const mergedConfiguration = {
       ...configuration,
       state: mergeState(