cvsup ports question Freebsd 5.2

[Lowell Gilbert]

jens <jthys at wanadoo.Fr> writes:

> Hi folks,
> I have build the ports tree using the default ports-sup file tag 
> tag=.
> 
> I want to understand why my ports tree is wiped off when i change the tag 
> value to 
> RELENG_5_2_0_RELEASE
> or 
> RELENG_5
> or 
> RELENG_5_2

Quoted from some of the example supfiles:

    ###############################################################################
    #
    # DANGER!  WARNING!  LOOK OUT!  VORSICHT!
    #
    # If you add any of the ports or doc collections to this file, be sure to
    # specify them with a "tag" value set to ".", like this:
    #
    #   ports-all tag=.
    #   doc-all tag=.
    #
    # If you leave out the "tag=." portion, CVSup will delete all of
    # the files in your ports or doc tree.  That is because the ports and doc
    # collections do not use the same tags as the main part of the FreeBSD 
    # source tree.
    #
    ###############################################################################