Unable to change IP with Mellanox on MLAG

When changing IP addresses, the new address becomes intermittently unavailable.

When this occurs, there may be associated errors in the switch logs (as generated by sysdump) along these lines:

Oct 2 16:00:51 HCI-MLX2 mlagd[4799]: TID 140503404242688: [mlagd.NOTICE]:

[MLAG_MAC_SYNC_PEER_MANAGER.NOTICE] Need to mark the MACs as DENY, cnt:0 <

record_num:67

Oct 2 16:00:51 HCI-MLX2 mlagd[4799]: TID 140503404242688: [mlagd.NOTICE]:

[MLAG_MAC_SYNC_PEER_MANAGER.NOTICE] Failed to grow the pool size, err -12

Oct 2 16:00:51 HCI-MLX2 mlagd[4799]: TID 140503404242688: [mlagd.NOTICE]: