[6.x]: Dashboard layout is broken after updating to 6.0.0-alpha.14 when a plugin requiring yii2-adapter is enabled

[vnali]

What happened?

Description

My plugin, craft-counter requires yii2-adapter. After updating Craft to 6.0.0-alpha.14 and enabling my plugin, the dashboard throws console errors on widget load and dashboard layout is broken.

Errors seen:

Uncaught TypeError: can't access property "push", Craft.registeredJsFiles is undefined
Uncaught TypeError: Craft.getCookie is not a function

Steps to reproduce

• Install fresh Craft 6.0.0-alpha.14. dashboard works fine.
• Enable counter plugin which require yii2-adapter.
• Load the control panel dashboard. Dashboard layout is broken. Open dev tools console.
• Observe the two errors above.
• Load a front-end page that registers the plugin's asset bundle.
• Confirm the asset bundle is not registered/loaded, with no console error.

Craft CMS version

6.0.0-alpha.14

PHP version

No response

Operating system and version

No response

Database type and version

No response

Image driver and version

No response

Installed plugins and versions

• vnali/craft-counter
  

[linear-code]

CMS-2295