This bug was fixed in the package accountsservice - 0.6.15-2ubuntu9.5
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accountsservice (0.6.15-2ubuntu9.5) precise-proposed; urgency=low
* debian/patches/0009-language-tools.patch:
Prevent language-options from listing items that don't correspond
with an installed langpac
** Also affects: language-selector (Ubuntu Precise)
Importance: Undecided
Status: New
** Also affects: accountsservice (Ubuntu Precise)
Importance: Undecided
Status: New
** Changed in: accountsservice (Ubuntu)
Status: New => Fix Released
** Changed in: language-selecto