[views/forms] Fix EntityFieldsForm.link_to when parent entity is being created When the parent entity is being created and the inlined form is displayed, the parent entity has no eid yet and `peid` is usually 'A'. So int() raises a ValueError. Closes #4627739.

option_group_changed('port', 'main', 'web')
option_group_changed('query-log-file', 'main', 'web')
option_group_changed('profile', 'main', 'web')
option_group_changed('max-post-length', 'main', 'web')