DatabaseConfiguration.copy() loses list/array values
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                 Key: CONFIGURATION-342
                 URL: https://issues.apache.org/jira/browse/CONFIGURATION-342
             Project: Commons Configuration
          Issue Type: Bug
          Components: Type conversion
    Affects Versions: 1.5
            Reporter: Scott Wells


I've found a bug where adding a list property to a BaseConfiguration, then 
copying that full BaseConfiguration to a DatabaseConfiguration, the list is 
lost and only the first element is copied to the destination 
DatabaseConfiguration.  For example:

BaseConfiguration bc = new BaseConfiguration();
bc.addProperty("myList", Arrays.asList("1", "2", "3", "4");
DatabaseConfiguration dc = new DatabaseConfiguration(...);
dc.copy(bc);
List list = dc.getList("myList");
// At this point, you'll get a single element list containing only "1"


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