Missing TSL/ATS in parent process of multivolume work

[andre-hohmann]

Problem

In the parent process of multivolume works, the TSL/ATS is not written in the metadata - although it is written in the process title.
This leads to validation errors and thus to failing exports.

Solution

During the creation of processes of multivolume works, the TSL/ATS should be written in the metadata file additionally to the writing in the process title.

See also #3408 and #3988. Maybe a combined solution is possible.

Example

[andre-hohmann]

For the Kalliope superordinate processes, the problem occurs, too.
See #3988

[andre-hohmann]

The described behaviour cannot be reproduced anymore. The issue is closed.