Duplicating forms is not a default WP or CF7 function. Which plugin do you use to duplicate posts?
The conditional rules are saved as meta-data to the form, so any decent post-duplication plugin should give you the option to copy this data.
Thank you @jules-colle.
I’m using Duplicate Post plugin wich is the most used on wordpress (https://ww.wp.xz.cn/plugins/duplicate-post/).
I just checked and looks like it’s not working. I double checked and I’m sure that the conditional form data is saved as a post_meta field (called ‘wpcf7cf_options’) to the form. I think the duplicate post plugin should handle this. When you copy a form, the meta data should be copied as well. Please inform the author op the duplicate post plugin about this, because at this time I believe it’s a bug in their plugin.
That said, I’m open to any suggestions from the duplicate post plugin author, to modify my plugin’s code so it will work with theirs.