Delete remote branch with lease

Is there a way to delete a remote branch only if it is at the commit where my local repo thinks it is? Something like –force-with-lease, but for branch deletion instead of force-pushing.

This is what I fear:

1. I fetch branch X and confirm that it points to commit A, which is fully merged.
2. Unbeknownst to me, someone pushes commit B to branch X.
3. I delete the remote branch using git push origin --delete X.
4. Commit B is now unreferenced in the remote repository!

This is what I would like:

1. I fetch branch X and confirm that it points to commit A, which is fully merged.
2. Unbeknownst to me, someone pushes commit B to branch X.
3. I run some command that deletes remote branch X only it still points to commit A.
4. The command reports to me that it failed because remote branch X has advanced in the meantime.

>Solution :

Is there a way to delete a remote branch only if it is at the commit where my local repo thinks it is? Something like –force-with-lease, but for branch deletion instead of force-pushing.

The answer appears to be, "--force-with-lease". If the remote repository has been updated since I last update my local repository, this fails:

$ git push --delete --force-with-lease  origin testbranch
To .../upstream
 ! [rejected]        (delete) -> testbranch (stale info)
error: failed to push some refs to '.../upstream'

Whereas this succeeds:

$ git push --delete origin testbranch
To .../upstream
 - [deleted]         testbranch