#[0] what kind of note are you using for habla.news ? Or I don't understand the mechanism to be able to modify the content of a "post" on habla
Discussion
Habla uses kind 30023 from NIP-23 https://github.com/nostr-protocol/nips/blob/master/23.md When you modify and publish a new version of a post the NIP-33 compatible relays only keep the last version. Other relays might have multiple older versions but Habla always shows you the newest one found.