This bug was fixed in the package grub2-signed - 1.104
--------------- grub2-signed (1.104) cosmic; urgency=medium
* Rebuild against grub2 2.02+dfsg1-5ubuntu2. (LP: #1785033)
-- Mathieu Trudel-Lapierre <email address hidden> Wed, 05 Sep 2018 14:32:39 -0400
This bug was fixed in the package grub2-signed - 1.104
---------------
grub2-signed (1.104) cosmic; urgency=medium
* Rebuild against grub2 2.02+dfsg1- 5ubuntu2. (LP: #1785033)
-- Mathieu Trudel-Lapierre <email address hidden> Wed, 05 Sep 2018 14:32:39 -0400