Page Comparison

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1. KEEP: Don't overwrite the old value for this field if it was not empty
2. OVERWRITE:
   • Overwrite the old value for this field
   • This is the default strategy for simple fields which are fields that contain a textual value such as Title and Description.
3. MERGE:
   • Only applicable to complex fields which are fields that contain sub fields, such as Authors, Keywords and Categories.
   • Merge the new sub fields with the existing sub fields
   • This is the default strategy for complex fields

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