fix: override resolver for secrets

Author: rohan-chaturvedi

backend/backend/graphene/types.py

@@ -190,7 +190,7 @@ def resolve_override(self, info):
         if info.context.user:
             org = self.environment.app.organisation
             org_member = OrganisationMember.objects.get(
-                organisation=org, user=info.context.user)
+                organisation=org, user=info.context.user, deleted_at=None)
 
             try:
                 override = PersonalSecret.objects.get(