We have Jobs with timer trigger and SCM timer trigger.
Every trigger has an comment like this:
# every 30 minutes
*/30 * * * *
If we copy jobs with these triggers by URL(<Jenkins-URL>/createItem?name=copyOfJob) and config.xml as post data, then the triggers are not activ. Jenkins handles
# every 30 minutes
*/30 * * * *
as a whole comment.
If the trigger configuration ist like:
*/30 * * * *
# every 30 minutes
then copy by URL ist not possible. Jenkins gives an Exception (see Attachment)