[mikegreenberg]

Caveat: The other comments mention the file's contents being the only dependency on the hash, but the algo used to hash would also need to be the same. If the hash algo changes in two cases, the same content would have a different hash in those two cases.

[hot_gril]

In this case, would pinning the file make it accessible from either hash? I'd expect it to, but idk, I've only ever seen sha256 hashes on IPFS.

[jaccarmac]

Kinda. Shooting from the hip based on fuzzy gatherings from IPFS usage here, but as I understand it: The leaf-level data blocks will be shared between the Merkle trees, but at least the tip (the object a given hash actually refers to) and maybe some of the other structural information will be different.