[Visualization] Filter bucket containing spaces

I have got a field called "Product version" (mind the space in the name). On Discover I can use a filter like:
Product version:12*

Now I want to use the same filter for a visualization. Therefore I set Bucket/Aggregation to Filters and add my filter from above. Unfortunately this creates 0 hits.

Quoting the field name with either ' or " does no work either
A filter for a field without space works perfectly.

Any hints how I can provide such a filter?


Do you use KQL or Lucene syntax to perform a query? KQL handlers whitespaces automatically, Lucene requires escaping them with \. Could you try escaped version Product\ version:?

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