Modified call to `_formatAttachment` to pass the parent of attachment1 to get the filename of the attachments (not found in attachment1.mercury). Included safeguard when called by `formatAttachment`
Modified call to `_formatAttachment` to pass the parent of attachment1 to get the filename of the attachments (not found in attachment1.mercury). Included safeguard when called by `formatAttachment`

ravkr/facebook-chat-api,GAMELASTER/facebook-chat-api,Schmavery/facebook-chat-api