Xcode Project Navigator does not store collapsed outline item state: expands some/lots of groups and subprojects when switching to another navigator and back

Number:rdar://36650886 Date Originated:2018-01-19
Status:Open Resolved:
Product:macOS + SDK Product Version:
Classification:UI/Usability Reproducible:always


When I collapse all groups in the project using Option+Left Arrow on the root item in the outline view that is the Project Naviator, all items collapse. When I expand the root project item, only its direct descendants become visible as expected. But once I switch to any other Navigator tab and back to the Project Navigator, a lot of groups and sub-groups are expanded again.

Steps to Reproduce:

- collapse groups in Project Navigator
- switch to any other Navigator
- switch back to Project Navigator

Expected Results:

- the same outline view items are visible as before

Actual Results:

- most groups are expanded even though they were 


Xcode Version 9.2 (9C40b)


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