Multiple Merkle tree leaves
In the case of a user having multiple Merkle tree leaves, they would not be able to claim all the tokens they have proofs for, as the interaction with the claim mapping would result in the claimed amount subtracting the amount in the second leaf.
The team stated, however, that the Merkle tree will only have one leaf per user and that the claimable mapping is used in case a redistribution of tokens has to be made.