Hello, I am working in odoo 15 enterprise (sh), and I noticed that yesterday when I wanted to try to merge several contacts in the contacts module, I realized that the merge option had disappeared, the strange thing is that it only disappeared in the production branch, but in the staging branches the option to merge is still there.

Is there a way to find out if this option is hidden and how to unhide it? I don't want to use the data cleaning module as a second option...

Thank you!