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BUG-100: I managed to get 2 photos matching mich in the NOT_WORKING photo (probably dif refimgs but same p.tag?)
    = /photos/2012/20120414-damien/IMG_8467.JPG
BUG-106: cant add trudy /pat? as refimgs via FaceDBox
    - seems the cropped trudy face is not sufficient to find a face, how odd...
      (it came from a face bbox, BUT, I have grown the face seln by 10%?)
BUG-109: add mich force override, removed it, then re-added it, then rebuild DB form scratch and metadata has a duplicate
    - redo disco metadata with md5 not UUID of face dataS