5.15.2 NetworkManager fails to respond to IPv6 addresses on low priority networks with DHCP on UEK R4

When running UEK R4 on Oracle Linux 7 Update 7, NetworkManager fails to send a response to low priority networks with DHCP on UEK R4. Networks with higher priority (link-local, IPv6 fe80:/64 routes) take priority over the lower priority networks. This behavior might result in the DHCPv6 server failing to send a response to a DHCP client on a lower priority network, even if the network has another output device. (Bug ID 27714775)