Player ghosts should never be merged (rare as that case may be), but I can't test it because in wizard mode all ghosts are named "John Doe", so they always automerge on account of having the same name.
git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@5978 c06c8d41-db1a-0410-9941-cceddc491573
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