Model cleanup on schema change does not work with nested schema

[victorlambert]

Describe the bug
When nested schema with conditions are used, model cleanup on schema change throw this error :
Cannot read property 'split' of undefined
To Reproduce

1. Create a nested schema with preventModelCleanupOnSchemaChange on true
2. Use condition property to conditionally display a field
3. Fulfil condition, the field display correctly
4. Unfulfil condition, formvuelate try to cleanup model and throw an error

Expected behavior
The field should disappear with model cleanup

System Info

• FormVueLate version: 3.5.0
• plugins being used with versions:
  @formvuelate/plugin-vee-validate: 3.4.0
  vee-validate : 4.4.9

Additional context
findNestedFormModelProp expect formModel on first param

formvuelate/packages/formvuelate/src/utils/Helpers.js

Line 18 in c6dca75

export const findNestedFormModelProp = (formModel, path) => {

And we do not provide it in findNestedFormModelProp

formvuelate/packages/formvuelate/src/utils/Helpers.js

Line 44 in c6dca75

delete findNestedFormModelProp(path)[prop]

[logaretm]

Which version of vee-validate (not the plugin) are you using?

[victorlambert]

I'm using 4.4.9.