This bug was fixed in the package update-manager - 1:20.04.6
--------------- update-manager (1:20.04.6) focal; urgency=medium
* deb2snap: Don't replace debs that were manually installed via another package (LP: #1872958).
-- Marcus Tomlinson <email address hidden> Wed, 15 Apr 2020 11:34:33 +0100
This bug was fixed in the package update-manager - 1:20.04.6
---------------
update-manager (1:20.04.6) focal; urgency=medium
* deb2snap: Don't replace debs that were manually installed via
another package (LP: #1872958).
-- Marcus Tomlinson <email address hidden> Wed, 15 Apr 2020 11:34:33 +0100