FRR config rollbacks

ripd# conf t
ripd(config)# router rip
ripd(config-router)# network eth2
ripd(config-router)# show configuration candidate changes
@@ -14,6 +14,7 @@
  distance 25 172.16.1.0/24
  network eth0
  network eth1
+ network eth2
  redistribute ospf metric 3
  route 50.0.0.0/8
  route 60.0.0.0/8
ripd(config-router)# commit comment Enable RIP on eth2
% Configuration committed successfully.

ripd(config-router)#
ripd(config-router)# show configuration transaction
 Transaction ID  Client  Date                 Comment
 ------------------------------------------------------------------------
 9               CLI     2018-06-16 17:27:10  Enable RIP on eth2
 8               CLI     2018-06-16 17:26:14
 7               CLI     2018-06-16 17:26:07
 6               CLI     2018-06-16 17:25:08  Change RIP default metric
 5               CLI     2018-06-16 17:24:44  Enable RIP authentication
 4               CLI     2018-06-16 17:24:00
 3               CLI     2018-06-16 17:23:38
 2               CLI     2018-06-16 17:23:30
 1               ConfD   2018-06-16 17:23:00

ripd(config-router)#
ripd(config-router)# show configuration transaction 9
Configuration:
!
frr version 5.1-dev
frr defaults traditional
!
interface eth0
 ip rip authentication mode md5
 ip rip authentication string lalala
!
router rip
 allow-ecmp
 default-information originate
 default-metric 3
 distance 25 172.16.1.0/24
 network eth0
 network eth1
 network eth2
 redistribute ospf metric 3
 route 50.0.0.0/8
 route 60.0.0.0/8
 version 2
!
end
ripd(config-router)# show configuration transaction 9 changes
@@ -14,6 +14,7 @@
  distance 25 172.16.1.0/24
  network eth0
  network eth1
+ network eth2
  redistribute ospf metric 3
  route 50.0.0.0/8
  route 60.0.0.0/8
ripd(config-router)#
ripd(config-router)# show configuration compare ?
  candidate    Candidate configuration
  running      Running configuration
  transaction  Configuration transaction
ripd(config-router)# show configuration compare transaction 5 transaction 9 ?
  json  Change output format to JSON
  xml   Change output format to XML
  <cr>
ripd(config-router)# show configuration compare transaction 5 transaction 9
@@ -9,11 +9,15 @@
 !
 router rip
  allow-ecmp
+ default-information originate
+ default-metric 3
  distance 25 172.16.1.0/24
  network eth0
  network eth1
+ network eth2
  redistribute ospf metric 3
  route 50.0.0.0/8
  route 60.0.0.0/8
+ version 2
 !
 end
ripd(config-router)# show configuration compare transaction 9 transaction 5
@@ -9,15 +9,11 @@
 !
 router rip
  allow-ecmp
- default-information originate
- default-metric 3
  distance 25 172.16.1.0/24
  network eth0
  network eth1
- network eth2
  redistribute ospf metric 3
  route 50.0.0.0/8
  route 60.0.0.0/8
- version 2
 !
 end
ripd(config-router)#
ripd(config-router)#
ripd(config-router)# exit
ripd(config)# configuration database max-transactions 5
% Maximum number of transactions updated successfully.

ripd(config)#
ripd(config)#
ripd(config)# show configuration transaction
 Transaction ID  Client  Date                 Comment
 ------------------------------------------------------------------------
 9               CLI     2018-06-16 17:27:10  Enable RIP on eth2
 8               CLI     2018-06-16 17:26:14
 7               CLI     2018-06-16 17:26:07
 6               CLI     2018-06-16 17:25:08  Change RIP default metric
 5               CLI     2018-06-16 17:24:44  Enable RIP authentication

ripd(config)# exit
ripd#
ripd#
ripd# # method 1 to rollback to a previous configuration:
ripd# rollback configuration ?
  (1-4294967296)  Transaction ID
ripd# rollback configuration 5
% Configuration was successfully rolled back.

ripd#
ripd#
ripd# show configuration transaction
 Transaction ID  Client  Date                 Comment
 ------------------------------------------------------------------------
 10              CLI     2018-06-16 22:46:11  Rollback to transaction 5
 9               CLI     2018-06-16 17:27:10  Enable RIP on eth2
 8               CLI     2018-06-16 17:26:14
 7               CLI     2018-06-16 17:26:07
 6               CLI     2018-06-16 17:25:08  Change RIP default metric

ripd# conf t
ripd(config)# # method 2 to rollback to a previous configuration:
ripd(config)# configuration load ?
  file         Load configuration file into candidate
  transaction  Load configuration from transaction into candidate
ripd(config)# configuration load transaction ?
  (1-4294967296)  Transaction ID
ripd(config)# configuration load transaction 8
ripd(config)# show configuration candidate changes
@@ -9,11 +9,15 @@
 !
 router rip
  allow-ecmp
+ default-information originate
+ default-metric 3
  distance 25 172.16.1.0/24
  network eth0
  network eth1
+ network eth2
  redistribute ospf metric 3
  route 50.0.0.0/8
  route 60.0.0.0/8
+ version 2
 !
 end
ripd(config)# commit comment Revert latest changes
% Configuration committed successfully.

ripd(config)#

Hi, i want these commands on frr 7.5. and i have lots of bugs. what are your changes on northbound files to work with rollback. can you share your frr/lib/ directory with me?