py25-paramiko going back in time?

[Douglas Philips]

# port upgrade py25-paramiko
--->  Unable to uninstall py25-paramiko 1.7.3_0, the following ports  
depend on it:
--->    bzr
--->    bzrError: Uninstall py25-paramiko 1.7.3_0 failed: Please  
uninstall the ports that depend on py25-paramiko first.

from port outdated:
py25-paramiko                  1.7.3_0 < 1.7.2_0


Is my ports tree messed up or is this a bug?

Thanks,
	--Doug