Error in specific scenario

[olofweb]

I create a Glitch project to show my problem (https://rivets-js-bug.glitch.me). I have a simple model :

Vin
   Millesimes
      Sorties

Vin has a collection of Millesimes and Millesime has a collection of Sorties. I have an html page who display this model and the user can delete 'Sortie' one by one. When last 'Sortie' is deleted, the console show the error : TypeError: e is not a function. (In 'e()', 'e' is undefined)

If I remove the line <div rv-if="millesime.sorties | any"> (the goal is to not show the table of 'Sortie' if the collection is empty), no error.

Any idea ?