TM4C1294NCPDT: Dual static/DHCP configuration clears static IP data on Ethernet link up (lwiplib.c in TivaWare)

Good Morning!

My customer wants to choose (and change his mind at any moment)
between static IP and DHCP configuration.
I have to support both DHCP (so I need DHCP code) and static IP
in one firmware.

The problem is in file "TivaWare_C_Series-2.2.0.295/utils/lwiplib.c".

I need to include DHCP so I defined LWIP_DHCP constant for lwIPLinkDetect()
function.
When Ethernet state changes (for example: link up, link down),
the static IP information is cleared in lwIPLinkDetect():
------------------------------------------------------------------------------
//
// Clear any address information from the network interface.
//
ip_addr.addr = 0;
net_mask.addr = 0;
gw_addr.addr = 0;
netif_set_addr(&g_sNetIF, &ip_addr, &net_mask, &gw_addr);
------------------------------------------------------------------------------

I propose to clear data but not for static IP configuration:
------------------------------------------------------------------------------
if(g_ui32IPMode != IPADDR_USE_STATIC)
{
    //
    // Clear any address information from the network interface.
    //
    ip_addr.addr = 0;
    net_mask.addr = 0;
    gw_addr.addr = 0;
    netif_set_addr(&g_sNetIF, &ip_addr, &net_mask, &gw_addr);
}
------------------------------------------------------------------------------

Best wishes,
Piotr Kasprzyk