[0.16.0] `Logging.logToDebug` no longer works

**Describe the bug**
```java
Logging.logToDebug(Logging.Severity.ERROR);
```

This code no longer works - that is, I get tons of output from the library. `0.14.0` worked fine.

```java
Logging.addLogSink(Logging.Severity.VERBOSE, (_, _) -> {});
```

This also doesn't work.