Warning: array_key_exists(): The first argument should be either a string or an integer in CRM_Contact_Form_Search::getModeValue()
When opening the address accordion on advanced search (e.g. /civicrm/contact/search/advanced?qfKey=blah_blah&searchPane=location&snippet=json), drupal watchdog logs this warning:
Warning: array_key_exists(): The first argument should be either a string or an integer in CRM_Contact_Form_Search::getModeValue() (line 305 of .../CRM/Contact/Form/Search.php)
It doesn't seem to affect search results, and oddly isn't displaying a red box on the screen even if you have drupal set to display them.
Seeing it in 5.19beta1 and on master. It looks like it was in 5.14.0 at least too.