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Fix part of #10700: Migrate ReadOnlyTopicObjectFactory to ReadOnlyTopic (#22943)
[GSoC 2026] M1.7 - Fix part of #19614: Implement arc-based chapter groupings in story editor (#26393)
Fix #10260: Removed AngularJs and its instances (#23411)
[GSoC 2025] M1.1 - Fix #21725: Update the names of the tabs on the Topic page and rename "revision card" references to "study guide" (#22738)