Duplicate skeletons

[knollengewaechs]

URL of deployed dev instance (used for testing):

• https://___.webknossos.xyz

Steps to test:

• Open an annotation, add some trees (also within nested groups)
• open their context menu -> duplicate tree
• in the same group, a new tree with new nodes (same positions) should appear
• all tree actions should be working on original and copied tree
• check that NML import of skeletons is still working fine (as this uses the same action that was adjusted in this PR)

Issues:

• fixes Duplicate tree #5291

---

(Please delete unneeded items, merge only when none are left open)

• Updated changelog
• Updated migration guide if applicable
• Updated documentation if applicable
• Adapted wk-libs python client if relevant API parts change
• Removed dev-only changes like prints and application.conf edits
• Considered common edge cases
• Needs datastore update after deployment

[coderabbitai]

📝 Walkthrough

"""

Walkthrough

A "Duplicate Tree" menu item was added to the tree context menu in the tree tab. Supporting logic was implemented by updating the addTreesAndGroupsAction, its reducer, and helper functions to allow trees to be added without assigning new group IDs, enabling duplication within the same group.

Changes

Files/Paths	Change Summary
frontend/javascripts/viewer/model/actions/skeletontracing_actions.tsx	addTreesAndGroupsAction updated: new assignTreeToNewGroupId parameter (default true), payload extended.
frontend/javascripts/viewer/model/reducers/skeletontracing_reducer.ts	Reducer updated to handle assignNewGroupId from action and pass to helper.
frontend/javascripts/viewer/model/reducers/skeletontracing_reducer_helpers.ts	addTreesAndGroups updated: new assignNewGroupId parameter controls group ID assignment for trees.
frontend/javascripts/viewer/view/right-border-tabs/trees_tab/tree_hierarchy_renderers.tsx	"Duplicate Tree" menu item added; deep clone logic and dispatch using updated action.

Assessment against linked issues

Objective	Addressed	Explanation
Add "Duplicate Tree" menu item in tree tab context menu (#5291)	✅
Allow duplication of a tree (deep clone, same group, new name) (#5291)	✅
Update addTreesAndGroups to support duplication logic as described (#5291)	✅

Suggested labels

frontend, backend

Suggested reviewers

• philippotto

Poem

A tree now can duplicate,
With just a menu click—how great!
A copy blooms with name anew,
In the same group, its branches grew.
Rabbits cheer with coder glee,
For every tree, a backup tree! 🌳🐇
"""

---

📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 5448763 and 87d54e2.

📒 Files selected for processing (1)

• CHANGELOG.unreleased.md (1 hunks)

🚧 Files skipped from review as they are similar to previous changes (1)

• CHANGELOG.unreleased.md

⏰ Context from checks skipped due to timeout of 90000ms (3)

• GitHub Check: build-smoketest-push
• GitHub Check: backend-tests
• GitHub Check: frontend-tests

---

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[philippotto]

awesome, works great 👍 only see my one nitpick comment before merging.