Merge branch 'imrpove-filter-dropdown' into 'master'

Imrpove filter dropdown

Fixes #1617

See merge request !1120

app/controllers/projects/issues_controller.rb

@@ -28,7 +28,7 @@ class Projects::IssuesController < Projects::ApplicationController
     @milestone = @project.milestones.find(milestone_id) if milestone_id.present? && !milestone_id.to_i.zero?
     sort_param = params[:sort] || 'newest'
     @sort = sort_param.humanize unless sort_param.empty?
-    @assignees = User.where(id: @project.issues.pluck(:assignee_id))
+    @assignees = User.where(id: @project.issues.pluck(:assignee_id)).active
 
     respond_to do |format|
       format.html