az pipelines create fails

The CLI requires the `--organization` flag, but fails even if it's passed...

```sh
$ az pipelines create --name "EngineBuild" --description "Builds of the Express Engine" --repository --organization mxplusb --repository-type github
This command is in preview and under development. Reference and support levels: https://aka.ms/CLI_refstatus
--organization must be specified. The value should be the URI of your Azure DevOps organization, for example: https://dev.azure.com/MyOrganization/ or your Azure DevOps Server organization. You can set a default value by running: az devops configure --defaults organization=https://dev.azure.com/MyOrganization/. For auto detection to work (--detect true), you must be in a local Git directory that has a "remote" referencing a Azure DevOps or Azure DevOps Server repository.
```

---
#### Document Details

⚠ *Do not edit this section. It is required for docs.microsoft.com ➟ GitHub issue linking.*

* ID: 66f0311f-8316-ea52-6171-9eb14b9f7bc7
* Version Independent ID: e79f2bc9-543d-9a14-a08c-911d037e108a
* Content: [az pipelines](https://docs.microsoft.com/en-us/cli/azure/pipelines?view=azure-cli-latest)
* Content Source: [latest/docs-ref-autogen/pipelines.yml](https://github.com/MicrosoftDocs/azure-docs-cli/blob/master/latest/docs-ref-autogen/pipelines.yml)
* GitHub Login: @rloutlaw
* Microsoft Alias: **routlaw**

Start by reproducing the documented `az pipelines create` command and inspect the `az pipelines` entry point; the issue links the generated `latest/docs-ref-autogen/pipelines.yml` source. Done means the supplied `--organization` value is accepted and the command no longer reports that the flag must be specified.

Written by the indexing model from the issue text.