undefined method Drupal\Core\Field\BaseFieldDefinition::getThirdPartySetting() in simple_image_rotate_rotate_image()

I have confirmed the issue and the fix with the Background images module. I'm attaching a variant of fonant's proposed fix as a patch.

The patch from @NigelCunningham fixed a similar issue in a different function, not the one referenced by the original issue. Here's a patch that fixes the issue with the getThirdPartySetting() method in both places.

On a working D8 website with SIR up and runnign, I enable Media entity module for a new content type with a Audio field.

Saving that content type, I have the same issue we're discussing here.

I'm thus a bit suprised I got inside

  foreach ($fields as $field_name => $field) {
    if ($field->getType() == "image") {
    ....
   }

when saving a content type with no image involved...

To be noted that
if (($field instanceof ThirdPartySettingsInterface) && $field->getThirdPartySetting('simple_image_rotate', 'enable_rotate') == 1) {

fixed my issue

How can we push this forward?
How can we have this fix in next "composer update?" :)

Thanks Khoomy. Patch #3 applied