Ignore 'binding state abandoned' and indicate multiple MAC/IPs in leases

[marl-scot]

First off, great piece of software, has made things a lot easier and shown me a few issues I have with my network I hadn't spotted before!
I have spotted an issue when the dhcpd.leases file has abandoned leases listed :

lease 192.168.1.36 {
starts 1 2020/06/22 12:48:36;
ends 1 2020/06/22 12:58:36;
cltt 1 2020/06/22 12:48:36;
binding state active;
next binding state free;
rewind binding state free;
hardware ethernet de:c4:d3:57:a8:25;
uid "my uuid";
client-hostname "myhost";
}
lease 192.168.1.36 {
starts 1 2020/06/22 12:48:36;
ends 2 2020/06/23 12:48:36;
tstp 2 2020/06/23 12:48:36;
cltt 1 2020/06/22 12:48:36;
binding state abandoned;
next binding state free;
rewind binding state free;
}

As you can see isc dhpcd decided to assign IP 1.36 but then also added an abandoned entry (not sure why its doing this, i hadn't restarted dhcpd or the client) but when you then look at the leases page on Glass, you only see the undefined abandoned entry and not the real entry.
As the abandoned entries are NOT actual leases, then these should be ignored.