Configuration Change Logging ignores the configuration downloads

The Configuration Change Notification and Logging feature is supposed to log changes to the router's configuration. While it does a great job of logging commands entered in the router configuration mode, it completely ignores configuration changes due to configuration download (for example, with configure network or copy tftp running-config command). Here is an example:
fw#configure terminal
fw(config-archive)#log config
fw(config-archive-log-cfg)#logging enable
fw#configure network
Host or network configuration file [host]?
This command has been replaced by the command:
'copy system:/running-config'
Address or name of remote host []?
Source filename [fw-confg]?
Configure using tftp:// [confirm]
Loading fw-confg from (via FastEthernet0/0): !
[OK - 858 bytes]
%SYS-5-CONFIG_I: Configured from tftp:// by console
fw#show archive log config all
idx sess user@line Logged command
1 1 console@console logging enable
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