At the moment I cannot reproduce this bug, neither for transactions or dividends. I added accounts multiple times using pubkeys, but I never reproduce the error.
Do you have some more details about how you proceeded to introduce this bug ?
I've retried with a brand new Sakia installation (and data reset), and the problem remains as there is still a bug in the Remuniter account: the displayed amounts are not the sum of outputs (25 Ğ1) but only the part given to cgeek account (probably because I have this account in Sakia):
You can easily reproduce this bug with the following scenario: