pm issue 查询取消关联，防止关联保存

app/controllers/api/pm/issues_controller.rb

@@ -108,7 +108,7 @@ class Api::Pm::IssuesController < Api::Pm::BaseController
 
   def load_issue
     return render_parameter_missing if params[:pm_project_id].blank?
-    @issue = @project.issues.issue_issue.where(pm_project_id: params[:pm_project_id]).find_by_id(params[:id])
+    @issue = Issue.issue_issue.where(pm_project_id: params[:pm_project_id]).find_by_id(params[:id])
     render_not_found('疑修不存在!') if @issue.blank?
   end