Here is the patch.
I pre-append the name of the file with seeds, following your naming conventions in other modules you manage
I tested this on the server with the modsecurity restrictions and patch works.
Because I am renaming a file, please note that the patch works in Linux environments via Composer Patches.
It does work using git apply
If you are trying to test this on Mac OS, note that the patch may not work (renaming the fie) unless you install an OS packages via hombrew
https://github.com/cweagans/composer-patches/issues/326
asierrajr → created an issue.
I recently updated this module from a version prior to 3.1.1 which added the Database Update with ID: 8204 (8204 - Add PK to {multiple_registration} table ).
I ran into the same issue running the database update via Drush.
Applying Patch #6 and running the database update again applied the update with no database errors.