[Therion] Question for lox generating strange spikes at passage end

[Benedikt Hallinger]

Hello,
in a dataset i get a strange behavior regarding the loch model at 
passage ends:

At station 1.10 a weird spike is produced in the loch model, that should 
not be there.
If one comments out some branch that is not located near 1.10, the 
problem goes away.

What causes these spikes?

Attached a test set with comented section, thus producing correct ending 
of the tunnel.
Also, an image showing the problem (left: wrong spike, right: correct 
result with the branch commented)


Thanks alot,
Beni
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