fixed memory leak

Signed-off-by: Oleh Dokuka <[email protected]>
Signed-off-by: Oleh Dokuka <[email protected]>

Author: Oleh Dokuka

rsocket-core/src/main/java/io/rsocket/internal/UnboundedProcessor.java

@@ -124,6 +124,9 @@ void drainRegular(Subscriber<? super T> a) {
         }
 
         if (checkTerminated(d, empty, a)) {
+          if (!empty) {
+            release(t);
+          }
           return;
         }