Issue

• When preforming the following steps the Cloudforms UI throws an error.

Repro:
1. Edit a class that has only a meth1 row
2. Add several other rows
3. Add meth1 row again
4. Add several other rows
5. Click Save
(6. UI with throw validation error because of meth1 name conflict)
7. Delete the second meth1 row

• UI Error Description:

UI threw unexpected error encountered ("
undefined method `html_safe' for nil:NilClass [miq_ae_class/field_delete]") while editing a class schema.