Scripted Field with without "type" property in Jira API

Scripted fields with a searcher that is not natively supported in JIRA - for example "Exact Text Searcher (natural)" searcher from the Natural Searchers Plugin - have no type assigned when you try to get them via a REST call.

Steps to reproduce

Create a scripted field of any template and searcher Exact Text Searcher (natural)

And then navigate at

http://localhost:8080/jira/rest/api/latest/issue/$iisueKey?expand=schema,names,transitions

And search for the custom field. You will get something like

customfield_10122: {
custom: "com.onresolve.jira.groovy.groovyrunner:scripted-field",
customId: 10122
}

instead of

customfield_10122: {
*type: "<any type>"*,
custom: "com.onresolve.jira.groovy.groovyrunner:scripted-field",
customId: 10122
}