Core admin action "CREATE" fails for existing core

[André Widhani]

It seems to me that the behavior of the Core admin action "CREATE" has changed 
when going from Solr 4.1 to 4.3.

With 4.1, I could re-configure an existing core (changing path/name to 
solrconfig.xml for example). In 4.3, I get an error message:

  SEVERE: org.apache.solr.common.SolrException: Error CREATEing SolrCore 
'core-tex69b6iom1djrbzmlmg83-index2': Core with name 
'core-tex69b6iom1djrbzmlmg83-index2' already exists.

Is this change intended?

André