latency fix: only set last-visit time if access was actually by the

robot

source/net/yacy/crawler/retrieval/HTTPLoader.java

@@ -74,7 +74,7 @@ public final class HTTPLoader {
     public Response load(final Request entry, final int maxFileSize, final BlacklistType blacklistType) throws IOException {
         final long start = System.currentTimeMillis();
         final Response doc = load(entry, DEFAULT_CRAWLING_RETRY_COUNT, maxFileSize, blacklistType);
-        Latency.updateAfterLoad(entry.url(), System.currentTimeMillis() - start);
+        if (!doc.fromCache()) Latency.updateAfterLoad(entry.url(), System.currentTimeMillis() - start);
         return doc;
     }