'Fomatter' error for Title field in cambridge_teasers_preprocess_field()

[JennyCumming]

We use a title field in our vertical_teaser - this is throwing an error at line 65 as the title field element doesn't contain a "#formatter" array item.

Notice: Undefined index: #formatter in cambridge_teasers_preprocess_field() (line 65 of profiles/cambridge/modules/features/cambridge_teasers/cambridge_teasers.module).

Can we add an additional check in at line 65 to either - check the field isn't title, or check that the #formatter array item exists before we try and get the format. The latter seems a better solution to be able to prevent for any other fields that don't have a formatter array item.

So either:
&& isset($vars['element']['#formatter']) before the 'smart_trim_format' === $vars['element']['#formatter'] check

OR

&& $vars['element']['#field_name'] !== 'title' before the 'smart_trim_format' === $vars['element']['#formatter'] check