check that you have the proper setting in .git/modules
as well. Since a few versions ago, git adds an entry there.
Also, the tree probably has a commit object at that path. To get rid of it you can
git rm --cached Classes/lib/AFKissXMLRequestOperation
that should get rid of it once and for all.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…