Update revision when revising a FileContractElement that's found in the ephemeral cache

[peterjan]

When mining a block with transactions:

• contract formation
• contract revision (broadcast)
• contract revision (broadcast)
• contract revision (broadcast)

I noticed my subscriber receives only 3 file contract elements in the ApplyUpdate, more importantly though one of those did not have a revision. I think there's a bug in reviseFileContractElement that doesn't properly update the rev map when encountering an fce we find in ephemeral, which I assume is a sort of cache.

[peterjan]

expected behaviour after all - closing