cannot edit workflow functions that have been created several years previously

            <function type="class">
              <arg name="full.module.key">com.onresolve.jira.groovy.groovyrunnerrungroovy-function</arg>
              <arg name="scriptFileName">/file/path/baz.groovy</arg>
              <arg name="class.name">com.onresolve.jira.groovy.GroovyFunctionPlugin</arg>
            </function>