fix whitelists

Mage.Client/src/main/java/mage/client/deckeditor/table/TaggerModel.java

@@ -36,6 +36,7 @@ public class TaggerModel extends AbstractTableModel {
     private int recentSortedColumn;
     private boolean recentAscending;
     private Runnable doSort;
+    private int whitelistCount = 0;
 
 
     public TaggerModel(Runnable sortFn) {
@@ -57,8 +58,10 @@ public class TaggerModel extends AbstractTableModel {
 
     public void clear() {
     	view = TagRepository.instance.getAllTags();
+    	filtered.clear();
         this.whitelist.clear();
         this.blacklist.clear();
+        fireTableDataChanged();
         doSort.run();
     }
     
@@ -188,17 +191,32 @@ public class TaggerModel extends AbstractTableModel {
     
     public Set<String> buildWhitelist() {
     	whitelist.clear();
+    	whitelistCount = 0;
+    	// whitelists are a bit weird, each one needs to reduce the next
+    	Set<String> temp = new HashSet<String>();
+    	
+    	boolean fresh = true;
+    	
     	for (String key : filtered.keySet()) {
+    		temp.clear();
     		if (filtered.get(key)) {
+    			whitelistCount++;
     			for (CardInfo card : TagRepository.instance.getCardsByTagId(key)) {
-    				whitelist.add(card.getName());
+    				temp.add(card.getName());
     			}
+        		if (fresh) {
+        			whitelist.addAll(temp);
+        		} else {
+        			whitelist.retainAll(temp);
+        		}
+        		fresh = false;
     		}
     	}
 
     	return whitelist;
     }
     
+    
     public Set<String> buildBlacklist() {
     	blacklist.clear();    	
     	for (String key : filtered.keySet()) {