Behaviors setFieldOptions on issueLinks-issues

[Robin Fahy]

I am trying to use a behavior to limit the available "Issue" options on the system issue links field

FormField issueLinkItems = getFieldById('issuelinks-issues')

String allowedLinkedItemsJql = "type = Bug"

//JiraHelper is a function I created that returns a SearchResult based on jql
//OPTION A: Set options based on the "Issue" interface
List<Issue> allowedLinkedItems = JiraHelper.findSearchResults(allowedLinkedItemsJql).getIssues()
issueLinkItems.setFieldOptions(allowedLinkedItems)

//OPTION B: Set options based on the issue key (as in, BUG-1234)
List<String> allowedLinkedItemsKeys = allowedLinkedItems.collect{it -> it.getKey()}
issueLinkItems.setFieldOptions(allowedLinkedItemsKeys)

Logs are spitting out errors:
A: Unsupported type class com.atlassian.jira.issue.DocumentIssueImpl in setFieldOptions()

B: Unsupported type class java.lang.String in setFieldOptions()

meaning, I'm not entering the right type of iterable into the setFieldOptions() form for this particular field. 

Is there any way to do this using behaviors?

[Prashant Mali]

Any update on this?

[Prashant Mali]

I am also facing issue. any luck on the same?