Invalid default values for VueJS components in props table

[jonhuteau]

Describe the bug
I'm upgrading to v6.0.0-rc.8 and defaults values in props tables are empty. If I revert changes made at https://github.com/storybookjs/storybook/pull/11534/files#diff-ac92839dce97cc5e5fdcc8587102c691, I can see default values.

To Reproduce
Steps to reproduce the behavior:

1. Go to https://next--storybookjs.netlify.app/vue-kitchen-sink/?path=/docs/button--rounded
2. Look at button's default values
3. controls should be OK but default col contains empty string (for color prop for example)

Expected behavior
Default values should be present in default column of props table

Screenshots

System:

$ npx -p @storybook/cli@next sb info

Environment Info:

  System:
    OS: Linux 4.15 Ubuntu 18.04.4 LTS (Bionic Beaver)
    CPU: (8) x64 Intel(R) Core(TM) i7-8650U CPU @ 1.90GHz
  Binaries:
    Node: 12.18.2 - /usr/bin/node
    npm: 6.14.5 - /usr/bin/npm
  Browsers:
    Chrome: 83.0.4103.116
    Firefox: 78.0.2
  npmPackages:
    @storybook/addon-a11y: ^6.0.0-rc.8 => 6.0.0-rc.8 
    @storybook/addon-controls: ^6.0.0-rc.8 => 6.0.0-rc.8 
    @storybook/addon-docs: ^6.0.0-rc.8 => 6.0.0-rc.8 
    @storybook/addon-jest: ^6.0.0-rc.8 => 6.0.0-rc.8 
    @storybook/addon-viewport: ^6.0.0-rc.8 => 6.0.0-rc.8 
    @storybook/addons: ^6.0.0-rc.8 => 6.0.0-rc.8 
    @storybook/vue: ^6.0.0-rc.8 => 6.0.0-rc.8 

[shilman]

Thanks @jonhuteau -- will get it sorted!

[shilman]

Egads!! I just released https://github.com/storybookjs/storybook/releases/tag/v6.0.0-rc.11 containing PR #11603 that references this issue. Upgrade today to try it out!

You can find this prerelease on the @next NPM tag.

Closing this issue. Please re-open if you think there's still more to do.