How to reproduce:
1. Open the attached “SORedoUndo.zip“ project
2. Select the "BaseScriptableObject" asset
3. In the Inspector press "Add 3 Children"
4. Press “CTRL” + “Z” and “CTRL“ + “S“ (undo and save)
5. Press “CTRL” + “SHIFT“ + “Z” and “CTRL“ + “S“ (redo and save)

Expected result: All three child ScriptableObjects re-appear and are linked
Actual result: Only one child ScriptableObject that re-appears is linked

Reproducible with: 2021.2.0a9, 2021.3.30f1, 2022.3.10f1, 2023.1.15f1, 2023.2.0b11, 2023.3.0a8
Not reproducible with: 2021.2.0a8

Reproducible on: macOS 14.0 Sonoma (Intel)
Not reproducible on: No other environment tested

Note: Sometimes none of the children re-appear and are named “Type mismatch“ in the "BaseScriptableObject" asset Inspector