New messages listed under wrong account

Binary package hint: evolution-indicator

This is with the latest Lucid version of evolution. All accounts are IMAP accounts.

I have 3 mail accounts set up, and when new messages arrive in one of them, the indicator lists new messages under the wrong account:

Account A
Account B
Account C

2 new messages arrive in Account C.
Message indicator turns green.
Indicator menu shows:

Account A (0)
Account B (2)
Account C (0)

Instead of the expected:

Account A (0)
Account B (0)
Account C (2)

If 2 new messages arrive in Account B, the menu shows them under Account B as well, so it's not a case of just having entries swapped.