robhoes/xen-api-libs — comment on commit abbc3bfdc036ebb11aa639010f4c518e74a44071
File: stdext/listext.ml line 210
By zli:

If the original list contains multiple pairs with the same key, they will all get removed and a single new pair is introduced. Is that the intended semantics? Or the original list shouldn't contain multiple pairs with the same key?