kryo: ArrayIndexOutOfBoundsException when serializing generic classes

Using Kryo 5.0.0-RC3-SNAPSHOT, I get the following Stacktrace when running the test:

com.esotericsoftware.kryo.KryoException: java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0
Serialization trace:
input (SerializeTest$StringSupplierContainer)
	at com.esotericsoftware.kryo.serializers.ReflectField.write(ReflectField.java:92)
	at com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:107)
	at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:630)

import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.io.Output;
import org.junit.jupiter.api.Test;

import java.io.Serializable;
import java.util.function.Supplier;

import static org.assertj.core.api.Assertions.assertThat;

public class SerializeTest {

	@Test
	void serialize() {
		final Kryo kryo = new Kryo();
		kryo.setRegistrationRequired(false);

		final Output output = new Output(1024);
		kryo.writeClassAndObject(output, new StringSupplierContainer());
		final byte[] result = output.toBytes();

		assertThat(result).isNotNull();
	}

	static class EmptyStringSupplier implements Supplier<String>, Serializable {

		@Override
		public String get() {
			return "";
		}
	}

	static class StringSupplierContainer extends SupplierContainer<String> {

		StringSupplierContainer() {
			super(new EmptyStringSupplier());
		}
	}

	static class SupplierContainer<T> {

		private final Supplier<T> input;

		SupplierContainer(Supplier<T> input) {
			this.input = input;
		}
	}
}

Possibly related to #648