[V6.2.9] Control type OBJECT's value is not set on initial load

BUG DESCRIPTION

• Controls of object type is not set on initial load of story:
  • 
• But it will be set once you click on Reset controls button.
  • 

System

npx sb@next info output:

Environment Info:

  System:
    OS: macOS 11.2.2
    CPU: (8) x64 Intel(R) Core(TM) i7-1068NG7 CPU @ 2.30GHz
  Binaries:
    Node: 12.22.1 - ~/.nvm/versions/node/v12.22.1/bin/node
    npm: 6.14.12 - ~/.nvm/versions/node/v12.22.1/bin/npm
  Browsers:
    Chrome: 91.0.4472.106
    Firefox: 89.0
    Safari: 14.0.3
  npmPackages:
    @storybook/addon-a11y: ^6.2.1 => 6.2.9 
    @storybook/addon-actions: ^6.2.1 => 6.2.9 
    @storybook/addon-essentials: ^6.2.1 => 6.2.9 
    @storybook/addon-knobs: ^6.2.1 => 6.2.9 
    @storybook/addon-links: ^6.2.1 => 6.2.9 
    @storybook/addon-options: ^5.3.21 => 5.3.21 
    @storybook/react: ^6.2.1 => 6.2.9 
    @storybook/theming: ^6.2.1 => 6.2.9 

Additional context ℹ️ : Last time this worked for us was in version 6.2.1 ❗

[danielbeckmann]

Hi @shilman, sure: https://github.com/danielbeckmann/storybook-issue-15272 The steps to reproduce are in the README.md file.

[shilman]

This is indeed a strange one. @ghengeveld I reproduced but it’s not immediately obvious what’s going on here. Can you please take a look?