If you search around the web you will see this question asked a lot but there are no clear answers. Here is my particular case.
I am using Versions SVN client on a m
Best to just use SVN to copy trunk over to tags
svn cp http://plugins.svn.wordpress.org/xxx/trunk http://plugins.svn.wordpress.org/xxx/tags/1.0 -m "tagging 1.0"
That should work just fine if you're having a problem with git svn tag.