Fatal error on group search
To replicate quickly
- Navigate to Search builder
- Search for Contact => Groups => IS NULL. On submit, you'll get the following error.
We've also seen this error on contact summary page => Groups tab on one of the client site, but not sure what exact cases need to be true to see the error.
Seems related to changes made in https://github.com/civicrm/civicrm-core/commit/0cf0a3f39283cac6b7c45a059ffba09621e813e3