Pages are not reordered on live site when only the changed ones are selected for publish

• Type: Bug
• Status: Closed
• Resolution: Won't Fix
• Affects Version/s: 7.0.X, 7.1.X, 7.2.X, Master
• Fix Version/s: None
• Component/s: Staging, ~[Archived] WCM
• Labels:
  • ee-ts

Reproduction Steps:

1. Set up and start a bundle
2. Create a new site
3. Create 3 new public widget pages: "page1", "page2", "page3"
4. Enable local staging
5. Verify: pages are in order in Live site
6. In Site Builder of Staging site, swap pages "page1" and "page2", using drag & drop
7. Go to Publishing ==> Staging, add new publication
8. Select only "page1" and "page2", then publish
9. Check the result on Live site, in Site Builder:

Actual: Order is not changed: "page1", "page2", "page3"
Expected: Order follows the one in staging: "page2", "page1", "page3"

Notes:
The priority value is not updated correctly for existing Layouts during import. It's only updated for newly imported ones in LayoutStagedModelDataHandler.doImportStagedModel(..).