ACF repeater field meta not indexed if the post doesn’t have other meta.

[burhandodhy]

Describe the bug

Currently, to index data from an ACF repeater field, the plugin relies on the ep_prepare_meta_allowed_protected_keys filter. However, this filter is not triggered if the post has no other meta fields. This occurs because in prepare_meta, the process exits early if it’s empty.

Steps to Reproduce

1. Create the ACF repeater field and set the option to index it.
2. Ensure the post has no other meta fields.

Screenshots, screen recording, code snippet

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Environment information

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