I've localized problem to `ListConversionListener`...

# tornadofx

[altavir]

I've localized problem to ListConversionListener, the line list.addAll(change.from, change.addedSubList.map(converter)) is being called multiple times.
I am using setAll on list of size 1 so there should be exactly one element in the response. An I've checked in debugger that my method is called once.