This bug was fixed in the package grub2-signed - 1.34.18
--------------- grub2-signed (1.34.18) trusty; urgency=medium
* Rebuild against grub-efi-amd64 2.02~beta2-9ubuntu1.16 (LP: #1785033) (LP: #1642298) (LP: #1696599) (LP: #1792575)
-- Mathieu Trudel-Lapierre <email address hidden> Wed, 09 Jan 2019 09:11:55 -0500
This bug was fixed in the package grub2-signed - 1.34.18
---------------
grub2-signed (1.34.18) trusty; urgency=medium
* Rebuild against grub-efi-amd64 2.02~beta2- 9ubuntu1. 16
(LP: #1785033) (LP: #1642298) (LP: #1696599) (LP: #1792575)
-- Mathieu Trudel-Lapierre <email address hidden> Wed, 09 Jan 2019 09:11:55 -0500