3.22. if-prefix-field
[if-prefix-field field] IF text [else] ELSE text [/else] [/if-prefix-field]
Same as [if-prefix-data ...] except uses the same data rules as [prefix-field].
[if-prefix-field field] IF text [else] ELSE text [/else] [/if-prefix-field]
Same as [if-prefix-data ...] except uses the same data rules as [prefix-field].