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A worfklow function that sets the value(s) of a field on all issues linked to the current issue through a specified link type. The new value can be either a constant or the result of the evaluation of a Groovy expression.
Note that you can use this function to set a field of all sub-tasks by using the built-in "jira_sub_outward" link type, and of the parent issue by using the "jira_sub_inward" link type.
When using Groovy, it is possible to access both the source issue (the one that triggers the function) through the "issue" and "issueObject" variables, and the destination issue through the "linkedIssue" and "linkedIssueObject" variables (it will be evaluated once per linked issue to modify).
The "issue" object is a simple wrapper around the Issue that gives you a "get(fieldName)" method to access fields directly.
The "issueObject" is the actual com.atlassian.jira.issue.Issue object
The "log" object is a log4j logger that writes to atlassian-jira.log.
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