1.43 broke backwards compatibility

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Describe the bug
1.43 made auto generated bones use the current bone default with null as its name, where before it always defaulted to non dynamic eg. 0 mass

To Reproduce
Find a xml that has a bone default and then add weights to a mesh for a new bone it will fall off the body since it will now have a mass > 0

Expected behavior
This may be desired behavior but it hasn't been discussed to my knowledge. Personally I think all auto generated bones should be 0 mass as it was pre-1.43

Desktop (please complete the following information):
Windows 10

FSMP

• Installed version: 1.6.640
• CUDA: No_CUDA
• AVX: AVX2

Required files
Don't have a log with it occuring since i fixed it on my setup(in XML)
configs.zip