Community - Fix wallet page so that transfer history is not corrupted

[roadscape]

From @eonwarped #32 and steemit/condenser#3061:

This should resolve steemit/condenser#2970 steemit/condenser#2968 steemit/condenser#2967.

The problem is that mergeDeep when given two parallel lists will merge each entry by index, and this causes some weird behavior when the two transfer history lists aren't exactly matching up. Instead, the transfer history should be replacing the old transfer history. This change attempts to do just that.

One problem is that I was unable to reproduce the linked errors predictably, so I will try to see if there's a sequence that can reproduce. For now, just wanted to show the proposed fix.

I believe this should only happen in RECEIVE_STATE, and not in the other pieces of code that merge accounts (since they are used on account fetch calls that do not contain transfer history).

[JonathanPorta]

I'd like to see the logic broken up a little bit to make it more clear and easier to read. But, at least it's tested. :)

[JonathanPorta]

Thanks for making this better! 🥇

[roadscape]

Thanks @eonwarped!