There is significant downside to breaking up the long line segments on UBL Cartesian machines. It adds a lot of extra computation but worse... It cuts out all of UBL's off mesh Z-Height correction checks. There have been a large number of people complaining about the nozzle going to infinity or crashing into the bed lately. They are being caused by
```
void unified_bed_leveling::line_to_destination_cartesian()
```
not watching over the segments being queued up for movement.
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