Annis Query Bug

[margaretha]

The following Annis Query

"ich" & pos="VVFIN" & #1 ->malt/d[func="SUBJ"] #2 & #1 . #2

results in

java.lang.IllegalArgumentException: Class number must be bigger than 0.
        at de.ids_mannheim.korap.query.wrap.SpanReferenceQueryWrapper.(Spa
nReferenceQueryWrapper.java:29) ~[Kustvakt-full-0.62.3.jar:?]
        at de.ids_mannheim.korap.KrillQuery._operationReferenceFromJSON(KrillQue
ry.java:507) ~[Kustvakt-full-0.62.3.jar:?]
        at de.ids_mannheim.korap.KrillQuery._groupFromJson(KrillQuery.java:416) 
~[Kustvakt-full-0.62.3.jar:?]
        at de.ids_mannheim.korap.KrillQuery._fromKoral(KrillQuery.java:238) ~[Kustvakt-full-0.62.3.jar:?]
        at de.ids_mannheim.korap.KrillQuery._fromKoral(KrillQuery.java:222) ~[Kustvakt-full-0.62.3.jar:?]