Fix function_clause error when using externals      This was introduced by revision 1144844. Closes COUCHDB-1241.
Fix function_clause error when using externals
    
This was introduced by revision 1144844.
Closes COUCHDB-1241.




git-svn-id: c1f8a8ec0b3bb2e99ab3413722f81f687760e79c@1157262 13f79535-47bb-0310-9956-ffa450edef68

fkaempfer/couchdb,fkaempfer/couchdb,fkaempfer/couchdb,fkaempfer/couchdb,fkaempfer/couchdb,fkaempfer/couchdb