I discovered (and perhaps it explains other bugs) that terms occurrence is calculated over all the documents even those in trash.

For instance in that corpus : https://dev.sub.gargantext.org/#/share/NodeCorpus/188141 I trashed the documents where altmetric.com appears, and even after refreshing all the calculations the occurrence of altmetric.com is at 5.

It should be at 0 or even better removed from terms as it is not anymore in the corpus.