fix(overmind): make sure mocking does not get HMR cached

Author: christianalfoni

packages/node_modules/overmind/src/index.ts

@@ -137,7 +137,7 @@ export class Overmind<Config extends Configuration> implements Configuration {
   constructor(configuration: Config, options: Options = {}) {
     const name = options.name || 'MyConfig'
 
-    if (IS_DEVELOPMENT) {
+    if (IS_DEVELOPMENT && !options.testMode) {
       if (hotReloadingCache[name]) {
         return hotReloadingCache[name]
       } else {
@@ -377,7 +377,6 @@ export class Overmind<Config extends Configuration> implements Configuration {
                   : undefined
               )
         })
-        
       } else {
         const execution = {
           ...this.createExecution(name, action),