stop mangling: rule="s#.*/festival/(?:[-_]?[Vv]?(\d[\-+\.:\~\da-zA-Z]*))/festlex_CMU#festlex-cmu_$1#"" rule doesn't match "(s|tr|y)#.*#.*#[a-z]*" (or similar).
Among the 1 debian patch available in version 2.4-3 of the package, we noticed the following issues: