Bone rigs are case sensitive for "export names"

[FlexYourBrain]

When exporting bone rigs with "export names" option, names must be lower case or export will result in blank names in defold .rivescene files.

Expected:
Uppercase exported names for bones in a rig should work in .rivescene.

• By default rive uses uppercase letters when creating bones/ using the bone tool.
• https://defold.com/extension-rive/#bone-hierarchy shows uppercase being used in the .rivescene

Repro:
Attached project shows rive scenes for uppercase resulting in blank names and lowercase showing bone names just fine. Open rive scene files to see bone names. Files are found in assets folder.

Rive_bone_naming_bug.zip

Defold 1.9.6 - Rive extension current.
Win 10
Rive editor - 0.8.2344 R