Added button types

app/views/projects/boards/components/sidebar/_assignee.html.haml

@@ -28,7 +28,7 @@
         ":value" => "issue.assignee.id",
         "v-if" => "issue.assignee" }
       .dropdown
-        %button.dropdown-menu-toggle.js-user-search.js-author-search.js-issue-board-sidebar{ data: { toggle: "dropdown", field_name: "issue[assignee_id]", first_user: (current_user.username if current_user), current_user: "true", project_id: @project.id, null_user: "true" },
+        %button.dropdown-menu-toggle.js-user-search.js-author-search.js-issue-board-sidebar{ type: "button", data: { toggle: "dropdown", field_name: "issue[assignee_id]", first_user: (current_user.username if current_user), current_user: "true", project_id: @project.id, null_user: "true" },
           ":data-issuable-id" => "issue.id",
           ":data-issue-update" => "'#{namespace_project_issues_path(@project.namespace, @project)}/' + issue.id + '.json'" }
           Select assignee

app/views/projects/boards/components/sidebar/_milestone.html.haml

@@ -16,7 +16,7 @@
         name: "issue[milestone_id]",
         "v-if" => "issue.milestone" }
       .dropdown
-        %button.dropdown-menu-toggle.js-milestone-select.js-issue-board-sidebar{ data: { toggle: "dropdown", show_no: "true", field_name: "issue[milestone_id]", project_id: @project.id, milestones: namespace_project_milestones_path(@project.namespace, @project, :json), ability_name: "issue", use_id: "true" },
+        %button.dropdown-menu-toggle.js-milestone-select.js-issue-board-sidebar{ type: "button", data: { toggle: "dropdown", show_no: "true", field_name: "issue[milestone_id]", project_id: @project.id, milestones: namespace_project_milestones_path(@project.namespace, @project, :json), ability_name: "issue", use_id: "true" },
           ":data-issuable-id" => "issue.id",
           ":data-issue-update" => "'#{namespace_project_issues_path(@project.namespace, @project)}/' + issue.id + '.json'" }
           Milestone