GitHub hosted config presets

[KnisterPeter]

How are you running Renovate?

Self-hosted Renovate

Which platform you running Renovate on?

GitHub.com

Which version of Renovate are you using?

41.173.1

Please tell us more about your question or problem

We are have a private GitHub Cloud Enterprise. That means all our repos and API calls need authentication.
We have a shared config preset with defaults to apply to all our repos. So far we used npm-hosted presets, but since these are deprecated, we would like to use github-hosted presets.

Unfortunately it seems that the configured hostRules are not applied while loading the config preset.
Below are the logs from renovate trying to load the preset:

TRACE: Resolving preset "github>xxx/yyy//path/file" (repository=aaa/bbb)
TRACE: getPreset(github>xxx/yyy//path/file) (repository=aaa/bbb)
TRACE: Preset URL (repository=aaa/bbb)
       "url": "https://api.github.com/repos/xxx/yyy/contents/path/file.json"
TRACE: HTTP request: GET https://api.github.com/repos/xxx/yyy/contents/path/file.json (repository=aaa/bbb)
TRACE: Authorization already set (repository=aaa/bbb)
       "url": "https://api.github.com/repos/xxx/yyy/contents/path/file.json"
TRACE: got request (repository=aaa/bbb)
       "url": "https://api.github.com/repos/xxx/yyy/contents/path/file.json",
       "options": {
         "method": "get",
         "context": {"hostType": "github"},
         "retry": {"calculateDelay": "[function]", "limit": 2, "maxRetryAfter": 0},
         "hostType": "github",
         "cacheProvider": {"aggressive": false},
         "headers": {
           "accept": "application/json, application/vnd.github.machine-man-preview+json",
           "user-agent": "RenovateBot/41.173.1 (https://github.com/renovatebot/renovate)",
           "authorization": "***********"
         },
         "responseType": "json",
         "hooks": {"beforeRedirect": ["[function]"]},
         "readOnly": true,
         "timeout": 60000
       }
DEBUG: GET https://api.github.com/repos/xxx/yyy/contents/path/file.json = (code=ERR_NON_2XX_3XX_RESPONSE, statusCode=404 retryCount=0, duration=118) (repository=aaa/bbb)
DEBUG: Preset file path/file.json not found in xxx/yyy: Response code 404 (Not Found) (repository=aaa/bbb)

The config preset is in a different github org than the repository to renovate. The already setup authentication (see logs) is probably using the wrong token. We have a host rule to setup specific authentication for https://api.github.com/repos/xxx. This works in all other places so far.

Any help is greatly appreciated.

Logs (if relevant)

Logs

Replace this text with your logs, between the starting and ending triple backticks

[KnisterPeter]

Okay, found the solution. The actual casing in the hostRule is relevant. That's unexpected, since with GitHub the URL path works case insenstive