LPS-52567 underscore "_" is not a valid DDM Field Name character. So it must be deleted from the field names during the upgrade as other punctuation characters.
Steps to Reproduce:
- Create a new structure named "test" with a text field named "test_text"
- Create a new template related to the previous structure with the following code:
- Create a web content based on the previous structure and fill the text field.
- Do an upgrade to 7.0 or master.
If you check in DDMTemplate, DDMStructure or JournalArticle the field name remains as text_test
If you check in DDMTemplate, DDMStructure or JournalArticle the field name should appear without the underscore.