[Bug Fix] Fix Double Decrement of NF Children Count

[koolzz]

Fixes a double free of the NFs children count.

Summary:

Unbelievable how would one ever allow this simple error to make it to dev, definitely not me But yeah, fixes the double decrementation of children count.

This PR includes
Resolves issues
Breaking API changes
Internal API changes
Usability improvements
Bug fixes	👍
New functionality
New NF/onvm_mgr args
Changes to starting NFs
Dependency updates
Web stats updates

Merging notes:

• Dependencies: None

TODO before merging :

• [x] PR is ready for review

Review:

Pls approve I need to merge

[onvm]

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[kevindweb]

@onvm let me have it

[onvm]

@onvm let me have it

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