OTR keys are tied to case-specific usernames

[DrWhax]

OTR keys are tied to a single case-specifc username. Thus if you change your nick from USER to user, you will not be able to access your USER keys.

[DipSwitch]

This is the default behavior of libotr itself. You could bypass this by converting the username string to lower or upper case but this would break the integrity / security of the plugin.

[DipSwitch]

Using the config username instead of the current username would be a better solution. IRC is the only IM which could force it's the username to change if it's already in use. Let's see =)

[DrWhax]

nothing much to do about...