fix case fallthrough bug reducing extraneous threads

engine-api/src/main/java/io/nosqlbench/engine/api/activityapi/ratelimits/HybridRateLimiter.java

@@ -172,6 +172,7 @@ public class HybridRateLimiter implements Startable, RateLimiter {
 //                logger.warn("Tried to start a rate limiter that was already started. If this is desired, use restart() instead");
                 // TODO: Find a better way to warn about spurious rate limiter
                 // starts, since the check condition was not properly isolated
+                break;
             case Idle:
                 long nanos = getNanoClockTime();
                 this.starttime = nanos;