When merging through the core admin ( http://wiki.apache.org/solr/MergingSolrIndexes) what is the policy for conflicts during the merge? So for instance if I am merging core 1 and core 2 into core 0 (first example), what happens if core 1 and core 2 both have a document with the same key, say core 1 has a newer version of core 2? Does the merge fail, does the newer document remain?
Also if using the srcCore method if a document with key 1 is written while an index also with key 1 is being merged what happens?
