Invalid column/type '?column?' in table 'applicationfilestocopytemp'

[PaulchenPlump]

When running the postgresql database update from 9 to 11 it aborts with the message Checking for invalid "unknown" user columns.

Another search brings up the incorrect table applicationfilestocopytemp which is defined as follows:
CREATE TABLE public.applicationfilestocopytemp (url character varying(500), "?column?" unknown, newurl character varying(500));

Is this needed and then what is the column definition? The creation of the table seems to be not quite https://github.com/h-mdm/hmdm-server/blob/master/server/src/main/resources/liquibase/db.changelog.xml#L944.

Thank you for the software and support!