Upgrade to 7/DXP from 6.1: Journal Article Images are lost if the image field name contains an underscore

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.0 DXP FP36, 7.0.X, Master
• Fix Version/s: 7.0.0 DXP FP40, 7.0.0 DXP SP7, 7.0.5 CE GA6, 7.0.X, 7.1.0 M1, 7.1.X, Master
• Component/s: Dynamic Data Mapping > Upgrades
• Labels:
  • ee-ts
  • liferay-digital-enterprise-70-sp7
  • liferay-fixpack-de-40-7010
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Fix Priority: 2
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/54828

Steps to reproduce it:

1. Startup a 6.1.30
2. Create a Journal Structure with an image field with name image_field
3. Create a Template for that Structure
4. Create a Web content using that structure and fill the image field with an image. Publish it.
5. Execute the following query and check that the elName field matches with the previous entered name image_field:

   SELECT * FROM JournalArticleImage

6. Upgrade to master/DXP/7
7. Execute the following query

   SELECT * FROM JournalArticleImage

Results:
The elName field doesn't match with the previous entered name image_field. The value now is image

Expected Results:
The elName field matches with the previous entered name image_field.