I'm on version v0.8.5.0-gef14a26-beta - from deb.
After some cleanup I noticed that some addresses get kinda-duplicates:

The "explain" address was created by normally clicking "new address". "ulek.net" on the other hand was created by importprivkey.
In both cases, I wanted to create/import one key/account. But somehow (after some time, not immediately) I got two.
What's more - these additional accounts do not show in listaccounts:
20:22:34 listaccounts
20:22:34{
"Bazowy adres" : 0.00000000,
"Od Illiego" : 0.00000000,
"explain" : 0.00000000,
"ulek.net" : 0.00000000
}
Now sure what else I can show to help debug the problem - if there is anything, please let me know.