buildQualifiedChatModelValue("deepseek-ai/deepseek-v3.2", "nvidia")
// Returns: "deepseek-ai/deepseek-v3.2"
// Expected: "nvidia/deepseek-ai/deepseek-v3.2"

### Steps to reproduce

{
  "agents": {
    "defaults": {
      "model": {
        "primary": "nvidia/z-ai/glm4.7",
        "fallbacks": [
          "nvidia/deepseek-ai/deepseek-v3.2"
        ]
      },
      "models": {
        "nvidia/deepseek-ai/deepseek-v3.2": {},
        "nvidia/z-ai/glm4.7": {
          "alias": "glm4"
        }
      },
      "sandbox": {
        "mode": "off"
      },
      "workspace": "~/.openclaw/workspace"
    },
    "list": [
      {
        "id": "main"
      }
    ]
  },
  
  "models": {
    "mode": "merge",
    "providers": {
     
  
      "nvidia": {
        "api": "openai-completions",
        "apiKey": "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",
        "baseUrl": "https://integrate.api.nvidia.com/v1",
        "models": [
          {
            "id": "minimaxai/minimax-m2.5",
            "name": "MiniMax M2.5"
          },
          {
            "id": "z-ai/glm4.7",
            "name": "GLM 4.7"
          },
          {
            "id": "deepseek-ai/deepseek-v3.2",
            "name": "DeepSeek V3.2"
          },
          {
            "id": "stepfun-ai/step-3.5-flash",
            "name": "Step 3.5 Flash"
          }
        ]
      }
    }
  }
 
  }
}


### Expected behavior

When a provider is explicitly provided, it should be prefixed to the model string, even if the model already contains a slash

### Actual behavior

the model string directly when it contains a slash (`/`), ignoring the provided `provider` 

### OpenClaw version

2026.4.5

### Operating system

macos

### Install method

github

### Model

nvidia/deepseek-ai/deepseek-v3.2

### Provider / routing chain

nvidia/deepseek-ai/deepseek-v3.2

### Additional provider/model setup details

_No response_

### Logs, screenshots, and evidence

```shell