Fire Door Two-Point Latching Options and Minimum Latch Points from Door to Frame

First part of this question is the general question: What is the minimum number of latch points that must be between the door and frame (excludes door-to-door latch points)? My understanding from a little research and my own fire testing experience is fire rated 2-point latching requires two points of latching from the doors into the frame.

Second part is a challenge to find an example with one point of latching into the frame (if it exists): Can someone find an example of fire...

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