[Vue warn]: Invalid watch source at StoryblokRichText since v8.1.5

[codeflorist]

Describe the issue you're facing

After upgrading the packages in my Nuxt installation, i'm getting these warnings regarding the StoryblokRichtext component:

WARN  [Vue warn]: Invalid watch source:  undefined A watch source can only be a getter/effect function, a ref, a reactive object, or an array of these types. 
  at <StoryblokRichText doc= { type: 'doc', content: [ { type: 'paragraph', content: [Array] } ] } > 
  at <Index onVnodeUnmounted=fn<onVnodeUnmounted> ref=Ref< undefined > > 
...

I've pinpointed the problem to the v8.1.5 release of @storyblok/vue.

Putting "@storyblok/vue": "8.1.4" in package.json solves the problem.

Reproduction

https://stackblitz.com/edit/nuxt-3-quickstart-demo-wb1d4w?file=pages%2Findex.vue

Steps to reproduce

No response

System Info

System:
    OS: Linux 5.0 undefined
    CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
    Memory: 0 Bytes / 0 Bytes
    Shell: 1.0 - /bin/jsh
  Binaries:
    Node: 18.20.3 - /usr/local/bin/node
    Yarn: 1.22.19 - /usr/local/bin/yarn
    npm: 10.2.3 - /usr/local/bin/npm
    pnpm: 8.15.6 - /usr/local/bin/pnpm

Used Package Manager

npm

Error logs (Optional)

No response

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