interrupt remote command bug?

[Glemboski, Mark A]

Env: Solaris 8/10, openssh-4.2p1

If I invoke the following remote command:
	
	ssh remoteHost "tail -f /var/adm/messages"

then interrupt the command locally via Ctrl-C, the local ssh
is terminated, but the signaled interrupt is not propagated to
the remote command. The remote sshd abandons the spawned program,
leaving the 'tail' running forever.

I know I can workaround this behavior by using 'ssh -t' to invoke
the remote command, forcing the creation of a controlling terminal.

Shouldn't the default behavior of ssh be to terminate the
remote command when it's terminated locally?

Please point me to a rational for this behavior.

Mark Glemboski