Can save null value

[Thomas-git]

Steps to reproduce

Ok, I've got an object in store with instanceDefaults returning a null value:

static instanceDefaults () {
      return {
        forceview: null
      }
    }

Server side, in the database, forceview can be null. And so user is allowed to set forceview to true, false or null.
It works when forceview is a boolean. But when I save an object with forceview === null I've got a feathers-vuex.

Expected behavior

Should be able to save a null value (as it can fetch objects with null values from server without a problem)

Actual behavior

Saving an object with a null value give an Error:

Uncaught (in promise) TypeError: Cannot convert undefined or null to object
    at hasOwnProperty (<anonymous>)
    at eval (app.hooks.js?c7f5:7)
    at Array.forEach (<anonymous>)
    at recurseDelete (app.hooks.js?c7f5:6)
    at recurseDelete (app.hooks.js?c7f5:19)
    at eval (app.hooks.js?c7f5:24)
    at eval (hooks.js?0632:116)
eval	@	app.hooks.js?c7f5:7
recurseDelete	@	app.hooks.js?c7f5:6
recurseDelete	@	app.hooks.js?c7f5:19
eval	@	app.hooks.js?c7f5:24
eval	@	hooks.js?0632:116
Promise.then (async)		
eval	@	vuex.esm.js?94e4:515
dispatch	@	vuex.esm.js?94e4:514
boundDispatch	@	vuex.esm.js?94e4:402
_dispatch	@	make-base-model.js?a995:180
create	@	make-base-model.js?a995:278
save	@	make-base-model.js?a995:265

System configuration

NodeJS version: Electron 9.3

Operating System: Archlinux

Browser Version: Electron 9.3

React Native Version: No. Using Quasar 1.14

Module Loader: Webpack 4.44

[Marshall Thompson]

What is this recurseDelete method that's involved in the error? I don't think this problem lies in feathers-vuex because I'm able to save null values on all of my projects.

[Thomas-git]

Good catch !
This is a hook I reuse in many project to recursively delete '__id' and '__isTemp' on models before sending to server. Recursively because when populating relations with live models (as in doc), those nasty '__id' and '__isTemp' properties are everywhere. By the way it may be a nice addition to docs to tell about it.
And I forgot to check for nulls in this one. Sorry for wasting your time.

[Marshall Thompson]

Thanks for the update. The solution to those attributes is already provided as part of the installation docs.