I currently use the legacy IndexTemplates with the "inheritance" mechanism.
During runtime, my application, will read in plain JSON templates from the filesystem and make PutIndexTemplateRequests out of the content using the standard "source(Map<String, Object>)" API available in all Request subclasses to fill the request with the relevant content.

Now, that those templates are becoming legacy

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目前 advanced-java 只有 [yanglbme](http

Kibana version: master

Describe the bug: When the value of a metric visualization is 0, it's just displayed as a dash.

Steps to reproduce:

1. Ingest 0 data:

POST data/_doc
{
  "numberfield": 0
}

2. Create indexpattern for data
3. Go to Lens
4. Drag numberfield
5. Average metric is shown as "-"

Expected behavior:
Should be shown as 0

**Screenshots

🐛 Bug Report

After the searchScroll has loop over all documents, the scroll cursor is not released.

The documentation states :

Search context are automatically remov