Discourse plugin to restrict users from mentioning each other is failing - plugins

Question

I have inherited a plugin used to restrict #mentions in discourse. Users are restricted to specific categories and are unable to view blocked categories, but when using the #mention in a topic the users in the restricted categories are showing up.
So user A works at company 1 and has access to the category associated to company 1. User B has access to the company 2 category. When user A #mentions someone on the company 1 category the autocomplete is displaying the users associated with the company 2 category.
I'm receiving no errors and the plugin supposedly worked before my arrival.
import { withPluginApi } from "discourse/lib/plugin-api";
import discourseComputed from "discourse-common/utils/decorators";
import userSearch from "discourse/lib/user-search";
function initWithApi(api) {
if (!Discourse.SiteSettings.restrict_mentions_enabled) return;
api.modifyClass("component:groups-form-interaction-fields", {
pluginId: 'groups-form-interaction-fields-plugin',
#discourseComputed(
"siteSettings.restrict_mentions_enabled",
"currentUser.admin",
"model.c_all_groups",
"model.name"
)
isShowRestrictMentions(enabled, admin, allGroups, name) {
return enabled && admin && allGroups && name && allGroups.includes(name);
},
#discourseComputed("model.c_all_groups", "model.name")
cSelectableGroups(allGroups, name) {
return (allGroups || []).filter(g => g !== name);
},
actions: {
setCAllowedMentionGroups(val) {
console.log(val);
let newVal;
if (val.includes("any")) {
newVal = "any";
} else {
newVal = val.filter(x => !Ember.isBlank(x)).join("|");
}
console.log(newVal)
this.model.set("c_allowed_mention_groups", newVal);
}
}
});
api.modifyClass("model:group", {
pluginId: 'group-plugin',
asJSON() {
const attrs = this._super(...arguments);
attrs["c_allowed_mention_groups"] = this.c_allowed_mention_groups;
return attrs;
},
#discourseComputed("c_allowed_mention_groups")
cAllowedMentionGroups(groups) {
return (groups || "").split("|");
}
});
api.modifyClass("component:composer-editor", {
pluginId: 'composer-editor-plugin',
userSearchTerm(term) {
if (!this.siteSettings.restrict_mentions_enabled) {
return this._super(...arguments);
}
let viewGroups = true;
const allowed =
this.get("topic.c_allowed_mention_groups") ||
this.currentUser.get("c_allowed_mention_groups");
console.log([this, allowed]);
if (Ember.isBlank(allowed)) {
return;
}
//REMOVING CUSTOMER GROUP FROM SEARCHABLE ARRAY OF STANDARD USERS
if(!this.currentUser.admin && !this.currentUser.moderator){
viewGroups = false;
const index = allowed.indexOf('All_Customers');
if (index > -1) {
allowed.splice(index, 1);
}
console.log(allowed)
}
const opts = {
term,
includeGroups: viewGroups,
groupMembersOf: allowed
};
return userSearch(opts);
}
});
}
export default {
name: "restrict-mentions",
initialize() {
withPluginApi("0.8", initWithApi);
}
};