Description

De default value for the write_all option of a Pod was set to the Pod name. This results in incorrect parsing of a boolean in PodsRESTFields::field_allowed_to_extend() in write mode.

@sc0ttkclark See testing instructions. I'm not sure how you would like to implement something that will repair old Pods. You could check for ! empty() instead of using filter_var() but that might not be desirable.

Related GitHub issue(s)

Fixes #7327

Testing instructions

1. Create a Pod without this patch and enable write mode.
2. Go to PodsRESTFields::field_allowed_to_extend() and dump $all_fields_can_use_mode. It will return false, allways.
3. Verify with $pod->get_arg( $pod_mode_arg, 'value_not_set' ) and see it returns the Pod name instead of a 1 or 0.
4. Apply this patch
5. Disable REST write access and save Pod (important, otherwise it won't reset the value)
6. Re-enable REST Write access and save Pod.
7. Redo 1, 2 and 3 and you'll see it returns the correct values now.

PR checklist

• I have tested my own code to confirm it works as I intended.
• My code follows the WordPress Coding Standards.
• My code follows the WordPress Inline Documentation Standards.