unable to use name in dropdown with symbol + or ()

[sandrocantagallo]

if you use in dropdown list a name that have symbol: + is impossible to selected it.
Same problem if you use symbol ( and )

The problem is in: node_modules/vue-simple-search-dropdown/dist/vue-simple-search-dropdown.js

Line: 165

for now i fix writing something like that:

var r = new RegExp(this.searchFilter.replace("+", "").replace("(", "").replace(")", ""), "ig");

But is just a workaround.

I also changed method selectOption:

methods: {
                    selectOption: function t(e) {
                        this.selected = e;
                        this.optionsShown = false;
                        this.searchFilter = this.selected.name;
                        //console.log(this.selected);
                        //console.log(this.searchFilter   );
                        //console.log(this.selected.name.replace("(", "").replace(")", ""));
                        this.selected.name = this.selected.name.replace("(", "").replace(")", "");
                        this.$emit("selected", this.selected);
                    },

In this way element don't show error and are selectable.

Please fix it.