Github user fustaki commented on the issue:
https://github.com/apache/struts/pull/134
Great, OK for me
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Between versions 2.2.X and 2.3.X DefaultActionProxy started to apply
StringEscapeUtils.escapeHtml4() to actionName.
This drastic change of behavior affects applications that strongly use
wildcard-patterns to pass parameters through actionName (friendly URLs).
Surely unescaping values in setter me
