Bug Fixes

• #13844 - Use available_at_site filter when filtering VLANs under prefix form
• #14663 - Fix tunnel creation when setting initial termination to a VM interface
• #14706 - Relax one-to-one mapping of tunnel termination to IP address
• #14709 - Fix typo in tunnel termination type choice name
• #14749 - Remove errant translation wrapper from installed_device on DeviceBay
• #14778 - Custom field API serializer should accept null values for all optional fields
• #14791 - Hide available prefixes when searching within a parent prefix
• #14793 - Add missing Diffie-Hellman group 15
• #14816 - Ensure default contact assignment ordering is consistent
• #14817 - Relax required fields for IKE & IPSec models on bulk import
• #14827 - Ensure all matching event rules are processed in response to an event