This bug was fixed in the package ubiquity - 19.04.6.1
--------------- ubiquity (19.04.6.1) disco; urgency=medium
* Automatic update of included source packages: partman-base 206ubuntu1 (LP: #1818285).
-- Iain Lane <email address hidden> Tue, 05 Mar 2019 12:49:08 +0000
This bug was fixed in the package ubiquity - 19.04.6.1
---------------
ubiquity (19.04.6.1) disco; urgency=medium
* Automatic update of included source packages: partman-base
206ubuntu1 (LP: #1818285).
-- Iain Lane <email address hidden> Tue, 05 Mar 2019 12:49:08 +0000