View source for Common:Many-to-Many Lookup Considerations

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Special considerations for a Lookup on a [[Many-to-Many Relationship]]:
:* The Lookup automatically becomes a [[Multi Value Lookup]].
:* It cannot be made read only.
:* Layout Rules cannot test the set of selected values.
:* It is not possible to specify a record-filter, to limit the number of possible choices.
:* When displayed the chosen values cannot be clicked to visit the corresponding records.