XMLConfiguration.subset() with FileChangedReloadingStrategy does *not* 'see' 
file changes
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                 Key: CONFIGURATION-228
                 URL: http://issues.apache.org/jira/browse/CONFIGURATION-228
             Project: Commons Configuration
          Issue Type: Bug
    Affects Versions: 1.2 Final
            Reporter: Janusz Studzizba


XMLConfiguration.subset() with FileChangedReloadingStrategy does *not* 'see' 
file changes

Configuration.xml:
<conf>
    <parent-item>
        <sub-item>old_value</sub-item>
    </parent-item>
</conf>

1. XMLConfiguration is loaded:
            config = new XMLConfiguration("c:\\conf.xml");
            config.setReloadingStrategy(new FileChangedReloadingStrategy());

2. Now, <sub-item> node value changes to "new_value",
and the code:
            Configuration parentItemConfig = config.subset("parent-item"); [AA]
            String ss2 = parentItemConfig.getString("sub-item");
returns "old_value" !!!

while:  config.getString("parent-item.sub-item"); returns new refreshed value.

It is a bug, we have FileChangedReloadingStrategy, we create new subset in [AA] 
but receive old values.

[for now, workaround for config users is to call config.reload() when 
strategy.hasChanged()]



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