removed very bad bug that prevented production of any remote search result

:-(((
Please update!

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2724 6c8d7289-2bf4-0310-a012-ef5d649a1542

build.properties

@@ -3,7 +3,7 @@ javacSource=1.4
 javacTarget=1.4
 
 # Release Configuration
-releaseVersion=0.472
+releaseVersion=0.473
 releaseFile=yacy_dev_v${releaseVersion}_${DSTAMP}_${releaseNr}.tar.gz
 #releaseFile=yacy_v${releaseVersion}_${DSTAMP}_${releaseNr}.tar.gz
 releaseDir=yacy_dev_v${releaseVersion}_${DSTAMP}_${releaseNr}

source/de/anomic/kelondro/kelondroRowCollection.java

@@ -296,7 +296,7 @@ public class kelondroRowCollection {
     
     public void select(Set keys) {
         // removes all entries but the ones given by urlselection
-        if (keys == null) return;
+        if ((keys == null) || (keys.size() == 0)) return;
         synchronized (this) {
             Iterator i = rows();
             kelondroRow.Entry row;