Bug: refer causes stack overflow if a symbol is not found

example, if I use refer in clojure.core:
```clojure
(ns clojure.core)
(refer 'clojure.interop)
```

any invalid expression causes stack overflow

```clojure
clojure.core=> asdfaf
thread 'main' has overflowed its stack
fatal runtime error: stack overflow
[1]    77210 abort      cargo run
```

any valid expression does not cause stack overflow, if I remove the refer, no issues