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Variable expansion in RewriteCond causes strings to be duplicated out of r->pool. If the variables are long and many conditions are evaluated, r->pool can get seriously bloated. Clear the memory used for variable expansion for each set of conditons once the set of conditions fails to match. edit: revised in 1799261 git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1798938 13f79535-47bb-0310-9956-ffa450edef68