In IOS XR, there are a command to see the full changes before commit?. For example:
RP/0/0/CPU0:INET#show running-config prefix-set MYPREFIXMon Oct 24 15:06:16.288 ARBUEprefix-set MYPREFIX 10.0.0.0/8 le 32, 172.16.0.0/12 le 32, 192.168.0.0/16 le 3...