This was noticed on special images where console-setup-udeb replaces kbd-config.
This happens only when installing unstable, not testing (by preseeing "mirror/suite=unstable" for instance) During the installation of packages on the target system, console-setup debconf questions are re-asked even though they were already asked while running console-setup-udeb I have not investigate why this happens but c-s should pick values set for console-setup-udeb or something similar... --
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