The Cisco IOS 'terminal monitor' Command Persistency

On RT2:

!
privilege exec level 1 terminal monitor
!
line vty 0 4
 autocommand terminal monitor
 autocommand-options nohangup
!

On RT1:

RT1#telnet 10.10.10.2
Trying 10.10.10.2 ... Open


User Access Verification

Password:
RT2>en
Password:
RT2#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
RT2(config)#end
RT2#
*Mar  1 00:04:16.459: %SYS-5-CONFIG_I: Configured from console by vty0 (10.10.10.1)
RT2#