Unable to generate tranformer schema when the package is npm link 'ed

[N0K0]

Description

So this is a facinating problem.
I've forked transformer-remark here: https://github.com/N0K0/gridsome-transformer-obsidian
(Note what i've written in the readme if this is a giant XY problem too! )

Blog i'm testing on here: https://github.com/N0K0/my-gridsome-blog

When i'm pulling my test package from npm here: https://www.npmjs.com/package/gridsome-transformer-obsidian
And build everything works, but when i do npm link ../gridsome-transformer-obsidian i get an error.

Steps to reproduce

1. git clone https://github.com/N0K0/gridsome-transformer-obsidian
2. Temp bump to version 0.0.9 locally (to verify npm link)
3. git clone https://github.com/N0K0/my-gridsome-blog
4. cd my-gridsome-blog
5. gridsome build
6. Everything works
7. npm link ../gridsome-transformer-obsidian
8. gridsome build
9. Fails

Clear steps describing how to reproduce the issue. Please please please link to a demo project if possible, this makes your issue much easier to diagnose (seriously).

Expected result

A smooth build and a shiny blog

Actual result

Error: TypeError[Post.content]: Cannot convert to InputType the following value: Object({ type: String, resolve: [function resolve] })
    at TypeMapper.convertOutputFieldConfig (/home/n/git/gridsome-markdown-example-main/node_modules/graphql-compose/lib/TypeMapper.js:320:13)
    at ObjectTypeComposer.setField (/home/n/git/gridsome-markdown-example-main/node_modules/graphql-compose/lib/ObjectTypeComposer.js:210:114)
    at createThirdPartyFields (/home/n/git/gridsome-markdown-example-main/node_modules/gridsome/lib/graphql/nodes/index.js:195:18)
    at createNodesSchema (/home/n/git/gridsome-markdown-example-main/node_modules/gridsome/lib/graphql/nodes/index.js:39:5)
    at createSchema (/home/n/git/gridsome-markdown-example-main/node_modules/gridsome/lib/graphql/createSchema.js:59:3)
    at Schema.buildSchema (/home/n/git/gridsome-markdown-example-main/node_modules/gridsome/lib/app/Schema.js:28:28)
    at Plugins.createSchema (/home/n/git/gridsome-markdown-example-main/node_modules/gridsome/lib/app/Plugins.js:94:22)

Environment

Before link:

  System:
    OS: Linux 5.15 Ubuntu 22.04.1 LTS 22.04.1 LTS (Jammy Jellyfish)
    CPU: (16) x64 12th Gen Intel(R) Core(TM) i7-1260P
  Binaries:
    Node: 16.17.1 - /usr/bin/node
    npm: 8.15.0 - /usr/bin/npm
  npmPackages:
    @gridsome/source-filesystem: ^0.6.2 => 0.6.2 
    gridsome: ^0.7.23 => 0.7.23 
    gridsome-transformer-obsidian: ^0.0.8 => 0.0.8 

After link:

  System:
    OS: Linux 5.15 Ubuntu 22.04.1 LTS 22.04.1 LTS (Jammy Jellyfish)
    CPU: (16) x64 12th Gen Intel(R) Core(TM) i7-1260P
  Binaries:
    Node: 16.17.1 - /usr/bin/node
    npm: 8.15.0 - /usr/bin/npm
  npmPackages:
    @gridsome/source-filesystem: ^0.6.2 => 0.6.2 
    gridsome: ^0.7.23 => 0.7.23 
    gridsome-transformer-obsidian: ^0.0.8 => 0.0.9