error: global flags not at the start of the expression at position 1

Sentry Issue: [FLAGSMITH-API-3Z3](https://flagsmith.sentry.io/issues/4678210205/?referrer=github_integration)

```
error: global flags not at the start of the expression at position 1
(22 additional frame(s) were not displayed)
...
File "environments/identities/views.py", line 231, in post
instance = serializer.save()
File "environments/sdk/serializers.py", line 154, in save
all_feature_states = identity.get_all_feature_states(
File "environments/identities/models.py", line 73, in get_all_feature_states
segments = self.get_segments(traits=traits, overrides_only=True)
File "environments/identities/models.py", line 172, in get_segments
if evaluate_identity_in_segment(
```