Request: Can we specify exact matches when linking m2o fields by strings?

[awmc000]

Example:

{'rows': {'from': 9, 'to': 9}, 'type': 'warning', 'record': 9, 'field': 'product_id', 'message': 'Found multiple matches for value "19-PCB-01501-2" in field "Product" (2 matches)'}

It's true, there is two products containing the string 19-PCB-01501-2, but they have different names.

I would like if I could configure the mapping or the load script such that only exact matches are made in this type of matching.
Is this possible?