ping between VM's not working after deletion and recreation of l3VPN

Hi,

ping between VM's not working after deletion and recreation of l3VPN.

Issue could be because of duplicate entries got created in group table after delete and recreation of l3vpn.

Steps to Reproduce:

1. Create Tunnel,network,subnet,port and boot all VM's.
2.Create l3vpn and associate subnet ID from karaf
Ex:
vpnservice:configure-l3vpn -op create-l3-vpn --subnet-uuid 85aafd43-6c53-4d15-9806-a825d8b3cc2e --vpnid abcdabcd-1234-1234-1234-abcdabcdabcd --name testVpn1 --rd 200:1 --import-rts 200:1 --export-rts 200:1
vpnservice:configure-l3vpn -op create-l3-vpn --subnet-uuid b8504eae-7684-438d-8fbb-a55beb625ab8 --vpnid abcdabcd-1234-1234-1234-abcdabcdabcd --name testVpn1 --rd 200:1 --import-rts 200:1 --export-rts 200:1
3. check ping works with all VM's across DPNs.
4. Delete VPN and recreate VPN using the same above ping.
5. Check ping behavior with all VM's across DPNs.

Result:
ping is not successful across VM.

All the required logs(flows,groups and karaf logs attached