Intent of mcpRegistry.test|title=Workbench - MCP - Registry Server Label Collision Enablement three-way collision: enabling lowest disables both others|occurrence=1, mcpRegistry.test|title=Workbench - MCP - Registry Server Label Collision Enablement enabling a colliding server disables others with same label|occurrence=1

All 2 exact tests in this concept. Every test is marked by where it enters the hierarchy.