* subversion/libsvn_wc/wc-metadata.sql
  (STMT_INSTALL_SCHEMA_STATISTICS): Avoid the possibility of duplicated rows
    in sqlite_stat1 by ensuring old index references are removed before
    installing new ones.


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1571214 13f79535-47bb-0310-9956-ffa450edef68