Wallet and voting including voting on own address seems to be working just fine:)
Maybe warning that you cannot unvote account that you have no active votes on would be good idea?
Transaction executes, is listed with no errors, but your coins are not consumed as it should be.
I'm not sure if fee is paid for above^.
No worries, the network will reject such transactions if no fee paid.
This is related to an issue in the pending manager, which has been fixed and will be rolled out in next release.