Views filter getBundles is fragile

I've also faced with the same issue. I had views based on commerce_invoice entity type and with relation to orders. I had filter for invoice type (bundle) and tried to add exposed filter by the order state. The code of the State filter tried to get bundle of the commerce_invoice filter and to get states for not existing commerce_order bundle - from the value of the commerce_invoice bundle filter.

I've created patch which works for my case and hope will work for others.

Committed, thanks!

Added additional handling in the case where multiple type filters may be present, so we can't rely on the filter key.

This also handles multiple type filters and does not treat a filter with the not in operator the same as the in operator.

Trusting you on this, committed!

Automatically closed - issue fixed for 2 weeks with no activity.