fix(overmind): fix state hot reload with adding and removal of key

Author: christianalfoni

packages/node_modules/overmind/src/index.ts

@@ -850,6 +850,7 @@ export class Overmind<ThisConfig extends IConfiguration>
       ),
     }
     const proxyStateTree = this.proxyStateTree as any
+    this.originalConfiguration.state = configuration.state
     this.proxyStateTree.sourceState = this.getState(mergedConfiguration)
     proxyStateTree.createTrackStateProxifier()
     this.state = this.proxyStateTree.state as any

packages/node_modules/overmind/src/utils.ts

@@ -78,11 +78,6 @@ export function mergeState(originState, oldState, nextState) {
       return old
     }
 
-    // If we remove a key we return undefined to remove it
-    if (next === undefined) {
-      return next
-    }
-
     // If we have changed a state from origin, keep that
     // changed state
     if (next === origin && old !== origin) {