Noticed that in the root home dir, the .history_frr file contains command history which I assume was being performed prior to preparing the rolling iso.
configure terminal
ip route 0.0.0.0/0 wg0 table 100
configure terminal
ip route 0.0.0.0/0 Null0 table 100 255
configure terminal
ip route 0.0.0.0/0 wg1 table 110
configure terminal
ip route 0.0.0.0/0 Null0 table 110 255
sh run
configure terminal
ip route 192.168.0.0/16 Null0
configure terminal
ip route 172.16.0.0/12 Null0
configure terminal
ip route 0.0.0.0/0 172.31.255.5
configure terminal
ip route 10.0.0.0/8 Null0
Not a huge thing, but might be worth your build scripts delete such files or their contents.