Preserve line breaks inside of table cells in ckeditor_creole

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.1.X, 7.2.X, Master
• Fix Version/s: 7.1.10 DXP FP17, 7.1.10.4 SP4, 7.1.X, 7.2.10 DXP FP4, 7.2.X, 7.3.0 CE GA1, 7.3.10 DXP GA1, Master
• Component/s: Alloy Editor
• Labels:
  • ee-ts
  • liferay-dxp-71-sp4
  • liferay-fixpack-dxp-17-7110
  • liferay-fixpack-dxp-4-7210
• Branch Version/s:
  7.2.x, 7.1.x
• Backported to Branch:
  Committed
• Fix Priority: 3
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/82857

While a lot of multi-line formatting inside of a table cell cannot be preserved when using ckeditor_creole due to creole's limited syntax, regular line breaks can be preserved by using double backslashes.

Steps to reproduce:

1. Navigate to Control Panel > Configuration > System settings > Wiki
2. Change the Creole Editor to ckeditor_creole
3. Navigate to Site (Liferay DXP) > Content > Wiki
4. Click on the Main wiki.
5. Edit the FrontPage of the main Wiki.
6. Add a table (any size)
7. Add some text to the table.
8. In any cell hit the enter key and then the backspace key.
9. Hit the "Source" button twice to toggle to source mode, and then back to wysiwyg mode