I now remember that one. Had issues with some Function1 not having a clone method if the constructor had the following:
entry_(rhs.entry_.clone())
Should theoretically be the same as the if (...) { ... } code, but wasn't.
I now remember that one. Had issues with some Function1 not having a `clone` method if the constructor had the following:
```
entry_(rhs.entry_.clone())
```
Should theoretically be the same as the `if (...) { ... }` code, but wasn't.