fix(proxy-state-tree): add proxies to returned derived values

Author: christianalfoni

packages/node_modules/proxy-state-tree/src/proxify.ts

@@ -120,14 +120,18 @@ function createObjectProxy(tree, value, path) {
       if (typeof prop === 'symbol' || prop in Object.prototype)
         return target[prop]
 
-      const targetValue = target[prop]
+      let targetValue = target[prop]
       const nestedPath = concat(path, prop)
       trackPath(tree, nestedPath)
 
       if (typeof targetValue === 'function') {
-        return tree.options.dynamicWrapper
-          ? tree.options.dynamicWrapper(tree, nestedPath, targetValue)
-          : targetValue(tree, nestedPath)
+        return proxify(
+          tree,
+          tree.options.dynamicWrapper
+            ? tree.options.dynamicWrapper(tree, nestedPath, targetValue)
+            : targetValue(tree, nestedPath),
+          nestedPath
+        )
       }
 
       if (targetValue === undefined) {