• Edit a content
• Drag&drop an local image in a richText which is in a repeater
• Save
• Reopen
• The image doesn't appears
• Save ... an error occurred :
  "Impossible de transformer le texte riche : Exception during processing of cocoon://_plugins/cms/convert/html2docbook."

Note that it works for rich text outside a repeater.

After fixing this issue, try to reorder an entry of the repeater with an image in a richText. It's possible that the path of the image is not recomputed