title: How to push tags with git subtree?
body: <p>I have successfully created a big repo made of a few subrepos with git-subtree, let's say Master contains Slave1 and Slave2.</p>
  
  <p>Master/
    Slave1/
    Slave2/</p>
  
  <p>Now I want to tag on Master and push each tag to the slave repos, how can I do it?</p>
  
  <p>If I "git push Slave2 --tags" the entire tag is transferred, but I only want the files related to Slave2 to be transferred.</p>
  
  <p>You can achieve it with git-subsplit, but it's honestly a bit unpractical and slow.</p>
  
  <p>Any suggestion? </p>