How do investors deal with their portfolio competing in the same space?

I was wondering how serial investors in search funds manage searchers in their portfolios competing directly in the same regions or sectors.

I assume many professional investors have policies on how to handle potential conflicts, however there might be some grey areas. This is especially true if the investor also has an active role in sourcing deals for its searchers.

Anyone had to deal with this issue? Would love to hear some perspectives here.