* modules/aaa/mod_auth_digest.c: Don't let a client_entry pointer

  escape the client_lock critical section; look up and release per
  access rather than caching the pointer across the request.

Assisted-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
GitHub: PR #705


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1937107 13f79535-47bb-0310-9956-ffa450edef68

Author: notroj