fixed fork后重命名项目标识再forked失败

app/controllers/forks_controller.rb

@@ -15,6 +15,7 @@ class ForksController < ApplicationController
     elsif ForkUser.exists?(fork_project_id: @project.id, user_id: current_user.id)
       fork = ForkUser.find_by(fork_project_id: @project.id, user_id: current_user.id)
       render json: { status: -1, identifier: fork.fork_project&.identifier, message: "fork失败，你已拥有了这个项目" }
+      return
     elsif Project.exists?(user_id: current_user.id, identifier: @project.identifier)
       render_result(0, "fork失败，你已拥有了这个项目")
     end