simple.fnl

(local tbl {:foo (fn [] "bar")})

(fn qux [f]
    (each [e f]
          (print e))) ; where my code has the bug

(fn baz []
    (if tbl.foo
        (let [result (tbl.foo)]
          (print result)
          (qux tbl))))

(baz)

simple.lua

local function _0_()
  return "bar"
end
local tbl = {foo = _0_}
local function qux(f)
  for e in f do
    print(e)
  end
  return nil
end
local function baz()
  if tbl.foo then
    local result = tbl.foo()
    print(result)
    return qux(tbl)
  end
end
return baz()