Fix infinite compile loop regression from recursive Lazy reference

[toshokan]

A recursive reference to a Lazy in its own initializer leads to a hanging compile.

The regression was introduced in #1184, and seems to also be experienced by the commenter here complaining about a hang.

[mehcode]

Thank you for the fix

[hhh42]

Thanks for the fix. Love the library. I had to go work client side for a few days. All good.