in src/main/groovy/com/epam/esp/jira/issue/AbstractBaseIssueProcessor.groovy [152:161]
def getMultiFieldAsList(SearchHit searchHit, String fieldName, String valueName) {
def field = searchHit.sourceAsMap.fields[fieldName]
if (field != null) {
List<String> result = new ArrayList<String>()
field.each {
result.add(it[valueName])
}
return result
} else return UNKNOWN
}