/data/valsi?after_word=ahi contains a'i

[BenLubar]

http://vrici.lojban.org:5555/data/valsi?after_word=ahi&limit=2

{
  "items": [
    {
      "word": "ai", 
      "type": "cmavo", 
      "definitions": {
        "ru": "http://vrici.lojban.org:5555/data/valsi/ai/ru", 
        "en": "http://vrici.lojban.org:5555/data/valsi/ai/en", 
        "zh": "http://vrici.lojban.org:5555/data/valsi/ai/zh", 
        "de": "http://vrici.lojban.org:5555/data/valsi/ai/de", 
        "sv": "http://vrici.lojban.org:5555/data/valsi/ai/sv", 
        "fr-facile": "http://vrici.lojban.org:5555/data/valsi/ai/fr-facile", 
        "jbo": "http://vrici.lojban.org:5555/data/valsi/ai/jbo", 
        "ja": "http://vrici.lojban.org:5555/data/valsi/ai/ja", 
        "es": "http://vrici.lojban.org:5555/data/valsi/ai/es"
      }, 
      "user": "officialdata", 
      "updated_at": "2003-03-02T17:41:04+00:00", 
      "_links": {
        "self": "http://vrici.lojban.org:5555/data/valsi/ai"
      }
    }, 
    {
      "word": "a'i", 
      "type": "cmavo", 
      "definitions": {
        "ru": "http://vrici.lojban.org:5555/data/valsi/ahi/ru", 
        "en": "http://vrici.lojban.org:5555/data/valsi/ahi/en", 
        "zh": "http://vrici.lojban.org:5555/data/valsi/ahi/zh", 
        "de": "http://vrici.lojban.org:5555/data/valsi/ahi/de", 
        "sv": "http://vrici.lojban.org:5555/data/valsi/ahi/sv", 
        "fr-facile": "http://vrici.lojban.org:5555/data/valsi/ahi/fr-facile", 
        "jbo": "http://vrici.lojban.org:5555/data/valsi/ahi/jbo", 
        "ja": "http://vrici.lojban.org:5555/data/valsi/ahi/ja", 
        "es": "http://vrici.lojban.org:5555/data/valsi/ahi/es"
      }, 
      "user": "officialdata", 
      "updated_at": "2003-03-02T17:41:04+00:00", 
      "_links": {
        "self": "http://vrici.lojban.org:5555/data/valsi/ahi"
      }
    }
  ], 
  "count": 24570, 
  "updated_at": "2015-08-17T21:19:32.257554+00:00", 
  "_links": {
    "self": "http://vrici.lojban.org:5555/data/valsi?after_word=ahi&limit=2", 
    "next": "http://vrici.lojban.org:5555/data/valsi?after_word=ahi&limit=2"
  }
}

It seems that the unmunge filter isn't running for some reason.