This bug was fixed in the package update-notifier - 3.192.53
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update-notifier (3.192.53) jammy; urgency=medium
* data/list-oem-metapackages: Complete the transition to apt_pkg which was
not fully done in the previous upload. (LP: #1966811)
-- Brian Murray Tue, 29 Mar
** Also affects: update-notifier (Ubuntu Jammy)
Importance: Undecided
Status: Confirmed
** Changed in: update-notifier (Ubuntu Jammy)
Status: Confirmed => In Progress
** Changed in: update-notifier (Ubuntu Jammy)
Importance: Undecided => High
** Changed in: update-notifier
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: update-notifier (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1966811