Missing property when using Gradle's Instantiator

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1

I’m getting the following exception when using an instance created by Gradle’s Instantiator:

groovy.lang.MissingPropertyException: Could not find property 'project' on CommandRunner_Decorated@7e32156a.

If I simply instantiate the CommandRunner class using “new” then it works fine.

Here’s a reproducible example: https://gist.github.com/tanob/11b040f377e0527321bd

Thanks