After update - shard totals different?

So I'd seen people suggest that it would be a good idea to record how many shards you have for characters, so that if the auto-levelling thing went wrong and some went missing you might be able to contact support to get them back.

..I don't appear to have lost any, but I do seem to have gained shards for a few of my characters that had been at level 50 already? Pooh got the most, somehow wound up with 47 extra.

Also I thought we're only going to need 60 shards to go from five stars to six, but a couple characters who were bumped from 41 to 50 kept more than that, the excess didn't convert to season coins.