function formatFulltext() breaks full-text search syntax

In <nuxeo-default-search-form>, function _search calls this.formatFulltext(this.searchTerm) to set the params to pass to the Page Provider. The full-text syntax allows for term negation (e.g. "supply -chain") to exclude results with a certain match. Strangely, this function (formatFulltext) chooses to strip out hyphens, thus passing the wrong params query. I'm not really sure of the purpose of this function. See:

https://github.com/nuxeo/nuxeo-web-ui/blob/master/elements/search/default/nuxeo-default-search-form.html#L155