Web Content cannot be changed to a different structure in the same hierarchy

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.2.X EE, 7.0.1 CE GA2, Master
• Fix Version/s: 6.2.X EE, 7.0.0 DXP FP2, 7.0.0 DXP SP1, 7.0.3 CE GA4, 7.1.X, Master
• Component/s: Web Content > Web Content Administration
• Labels:
  • liferay-digital-enterprise-70-sp1
  • liferay-fixpack-de-2-7010
  • liferay-fixpack-portal-115-6210
• Branch Version/s:
  7.0.x, 6.2.x
• Backported to Branch:
  Committed
• Story Points: 1
• Fix Priority: 3
• Sprint: Sprint 22: July, 25 - Aug, 05
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/42103

Steps To Reproduce:

1. Create a structure named A.
2. Create a structure named B, with parent A.
3. Create two templates, one for each structure.
4. Create a web content with A as structure.
5. Try to change in previous web content the structure.

Results:
B cannot be selected as new structure for web content.

Expected Results:
B should be an eligible structure.