Add to policy the save_meta_update method

src/api/app/policies/package_policy.rb

@@ -1,7 +1,7 @@
 class PackagePolicy < ApplicationPolicy
   def branch?
     # same as Package.check_source_access!
-    if @record.disabled_for?('sourceaccess', nil, nil) || record.project.disabled_for?('sourceaccess', nil, nil)
+    if source_access? || project_source_access?
       return false unless @user.can_source_access?(@record)
     end
     true
@@ -14,4 +14,16 @@ def update?
   def destroy?
     @user.can_modify?(@record)
   end
+
+  def save_meta_update?
+    update? && !source_access?
+  end
+
+  def project_source_access?
+    @record.project.disabled_for?('sourceaccess', nil, nil)
+  end
+
+  def source_access?
+    @record.disabled_for?('sourceaccess', nil, nil)
+  end
 end