How to reproduce:
1. Create a new Unity project
2. In the Project window, right-click -> Create -> Animation -> Animator Controller
3. Open the created Asset
4. Right-click in the workspace and observe the contextual menu options

Expected results: The last option is "Copy current State Machine"
Actual results: The last option is "Copy current StateMachine" without a space

Reproducible with: 6000.0.65f1, 6000.3.3f1, 6000.4.0b3, 6000.5.0a3

Reproducible on: Ubuntu 24, macOS Tahoe 26
Not reproducible on: No other environment tested

Note:
- Documentation uses "State Machine" with a space
- Also reproducible in the contextual menu of States