Fix YAML merge keys for children
Description
This MR aims at fixing the YAML merge key feature for the children key.
Related Issue
How Has This Been Tested?
Loading the b904-ge11
layout tree is working and the produced tree complete.
Types of changes
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Bug fix (non-breaking change which fixes an issue) -
New feature (non-breaking change which adds functionality) -
Breaking change (fix or feature that would cause existing functionality to change)
Checklist:
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My code follows the code style of this project. -
My change requires a change to the documentation. -
I have updated the documentation accordingly. -
I have read the CONTRIBUTING document. -
I have added tests to cover my changes. -
All new and existing tests passed.