From: Steve Keller <keller.steve@gmx.de>
Date: Fri, 18 Jan 2019 12:50:08 GMT
Subject: How to convert SVN tags to git tags?
Message-ID: <trinity-9f702373-ab1b-4c3e-9418-894ab0a6ef5a-1547815808777@3c-app-gmx-bs22>

After converting from SVN to git using git svn init + git svn fetch,
my SVN tags appear as remote branches in git.  I find many suggestions
to convert these to git tags by calling git tag -a <tag-name> <branch-name>
but this gives something like this

               C4
               |
               V
    T -> C3 -> C2
               |
               V
               C1

that is, I still have a branch with only 1 commit C3 and I have a tag T
pointing to that commit.  Also, T will have a current timestamp.  I'd
prefer to get

               C4
               |
               V
          T -> C2
               |
               V
               C1

where T takes the commit message and date from C3.  How can I achieve
that?

Steve