• Task version: v3.0.0-preview3
• OS: mac

Hi, thanks for the great work!
Task v3 evaluates shell commands before running the task - for example when running task --list.
This is not the behaviour in v2 and doesn't make sense as a lot of tasks depend on previous tasks.

Example:

version: '3' tasks: foo: desc: foo cmds: - echo $MSG env: MSG: {sh: 'sleep 10; echo hi'} 

Running task --list will sleep for 10 seconds.
In v2 it will just work as expected :)

Same bug occurs under vars: so I guess it has to do with the shell evaluation.
If you point me into a direction that might cause this behaviour I can add a PR to fix it.
Thanks!