EntityComboBox in Filter

Support
#1

In a filter condition that references another entity, I am trying to render an EntityComboBox instead of a a PickerField. Is this even possible? I thought that something like this jmix.ui.component.entityFieldType.sec$User = entityComboBox would cause this to happen as it does in a DataGrid editor, but it is not triggering for the filter condition. Help?

If it matters, I have a mixture of entity names using either $ or _ as the separator due to carryover from Cuba 6.X.

#2

Found it!

https://docs.spring.io/spring-boot/docs/2.3.3.RELEASE/reference/htmlsingle/#boot-features-external-config-relaxed-binding-maps

When binding to Map properties, if the key contains anything other than lowercase alpha-numeric characters or -, you need to use the bracket notation so that the original value is preserved. If the key is not surrounded by [], any characters that are not alpha-numeric or - are removed