🐛 | Drupal core | Warning: Undefined array key 0 in Drupal\Core\Database\Query\Condition->condition() (line 114 of core/lib/Drupal/Core/Database/Query/Condition.php)
Made new patch to bypass the error in said condition with an index verification:
$value = $value[0];
To
$value = isset($value[0]) ? $value[0] : $value;
Worked for me.
🐛 | Group | Drupal\group\Plugin\Group\RelationHandlerDefault::getRelationshipLabel() doesn't account for inexistent entity
Made a patch with #2 proposal; just fixed a missing ")".
Tested on my own envirotment (Under Drupal 10.2.6 with Group 2.2.2) in wich I had this problem.
The "call of label() on Null" problem after deleting content is now gone.