Selecting content types for related content block does not work in Symfony 2.7.9 and later

Description

A numeric ID is used in the form and saved to the database in instead of the contentType ID (slug).

Technical tasks

None

Deployment actions

None

Assignee

Unassigned

External issue ID

None

Client

Marijn Otte

Min. hours

None

Dev hour estimate

None

Fix versions

Configure