we are currently experimenting with HTML5 template ads. It seems that when you upload two ads in different campaigns with the exact same MEDIA_BUNDLE contents, this situation is detected by the Adwords API and the returned TemplateAd objects contain the ID of the first creative that was created in their originAdId field.
Is my understanding of this scenario correct, and will this always happen when a TemplateAd with the same contents as an already existing one is uploaded? Moreover, does this also hold for other types of creatives, e.g. do ImageAds have their adToCopyImageFrom field populated upon creation when another ad with the exact same image has been uploaded before?