Trying to iterate over keys and values of a tuple. In the documentations I find such a notice
"The current implementation also has a bug that affects symbol binding in the loop body." [https://nim-lang.org/docs/system.html#fieldPairs.i%2CS%2CT](https://nim-lang.org/docs/system.html#fieldPairs.i%2CS%2CT) Does this still hold true? Can this feature be used?
