import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.issue.search.SearchProvider
import com.atlassian.jira.jql.parser.JqlQueryParser
import com.atlassian.jira.web.bean.PagerFilter
import com.atlassian.jira.issue.search.SearchQuery
import com.atlassian.jira.issue.Issue
import com.atlassian.jira.issue.ModifiedValue
import com.atlassian.jira.issue.util.DefaultIssueChangeHolder
import com.atlassian.jira.issue.IssueManager

import com.atlassian.jira.jql.query.IssueIdCollector
import com.atlassian.jira.issue.customfields.option.Option

import com.atlassian.jira.issue.fields.CustomField;

def jqlQueryParser = ComponentAccessor.getComponent(JqlQueryParser)
def searchProvider = ComponentAccessor.getComponent(SearchProvider)
def user = ComponentAccessor.jiraAuthenticationContext.loggedInUser


final String customFieldName = "Групповой инцидент"
def issueManager = ComponentAccessor.getIssueManager()
def customFieldManager = ComponentAccessor.getCustomFieldManager()
def customField = ComponentAccessor.customFieldManager.customFieldObjects.findByName(customFieldName)
assert customField : "Could not find custom field with name $customFieldName"
//your query goes here
def query = jqlQueryParser.parseQuery("project = \"Диспетчерская служба\" and \"Групповой инцидент\" is EMPTY")

SearchQuery searchQuery = SearchQuery.create(query, user)
IssueIdCollector collector = new IssueIdCollector()
searchProvider.search(searchQuery, collector)
collector.getIssueIds().collect {
    def issue= issueManager.getIssueObject(it as Long)
    customField.updateValue(null, issue, new ModifiedValue("",  (Object) getOptions(issue, customField, ["Нет"]).get(0)), new DefaultIssueChangeHolder())
}

// получаем опции для кастомные полей типа radio button, checkbox and select
def List<Option> getOptions(Issue issue, CustomField customField, List<String> optionList) {
    def config = customField.getRelevantConfig(issue)
    def options = ComponentAccessor.getOptionsManager().getOptions(config)
    def optionsToSelect = options.findAll { it.value in optionList }
}