Word order error in English: "am not I X"

[inariksit]

This appears in questions with copula and first person. The tree in question:

> l UseQCl (TTAnt TPres ASimul) PNeg (QuestCl (PredVP (UsePron i_Pron) (UseComp (CompCN (UseN cat_N)))))
am not I a cat

Expected result: "am I not a cat".

In other persons and tenses this isn't a problem (you can check with the following)

Lang> gt UseQCl (TTAnt ? ?) ? (QuestCl (PredVP (UsePron ?) (UseComp (CompCN (UseN cat_N))))) | l

Also fine with other verbs.

Lang> gt UseQCl (TTAnt TPres ASimul) PNeg (QuestCl (PredVP (UsePron i_Pron) (ComplVV ? (UseV sleep_V)))) | l
can't I sleep
can't I sleep
mustn't I sleep
don't I want to sleep

The issue is just with the copula, because am not isn't contracted, like all other auxiliaries.