更改：更新项目private参数默认为项目is_public的值

app/controllers/projects_controller.rb

@@ -157,7 +157,7 @@ class ProjectsController < ApplicationController
   
         Projects::UpdateForm.new(validate_params.merge(user_id: @project.user_id, project_identifier: @project.identifier, project_name: @project.name)).validate!
   
-        private = @project.forked_from_project.present? ? !@project.forked_from_project.is_public : params[:private] || false
+        private = @project.forked_from_project.present? ? !@project.forked_from_project.is_public : params[:private] || !@project.is_public
 
         new_project_params = project_params.except(:private).merge(is_public: !private)
         @project.update_attributes!(new_project_params)