Fix unit test with nested lists.
Fix unit test with nested lists.

simonwagner/grantlee,cutelyst/grantlee,cutelyst/grantlee,simonwagner/grantlee,cutelyst/grantlee,cutelyst/grantlee,simonwagner/grantlee,simonwagner/grantlee,simonwagner/grantlee,cutelyst/grantlee,simonwagner/grantlee