Changed configuration saving so empty lists will be added to the configuration files.

CHANGELOG.txt

@@ -1,3 +1,7 @@
+5.2.2:
+- Changed configuration saving so empty lists will be added to
+    the configuration files.
+
 5.2.1:
 - Add region bounds to /region info
 - Added the ability to add owners/members to the global region for

src/main/java/com/sk89q/worldguard/bukkit/WorldConfiguration.java

@@ -29,6 +29,7 @@
 import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.IOException;
+import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
@@ -201,19 +202,35 @@ private double getDouble(String node, double def) {
     }
 
     private List<Integer> getIntList(String node, List<Integer> def) {
+        List<Integer> res;
+
         if (config.getProperty(node) != null) {
-            return config.getIntList(node, def);
+            res = config.getIntList(node, def);
         } else {
-            return parentConfig.getIntList(node, def);
+            res = parentConfig.getIntList(node, def);
         }
+
+        if (res == null || res.size() == 0) {
+            parentConfig.setProperty(node, new ArrayList<Integer>());
+        }
+
+        return res;
     }
 
     private List<String> getStringList(String node, List<String> def) {
+        List<String> res;
+
         if (config.getProperty(node) != null) {
-            return config.getStringList(node, def);
+            res = config.getStringList(node, def);
         } else {
-            return parentConfig.getStringList(node, def);
+            res = parentConfig.getStringList(node, def);
         }
+
+        if (res == null || res.size() == 0) {
+            parentConfig.setProperty(node, new ArrayList<String>());
+        }
+
+        return res;
     }
 
     /**