feat(send): specify commits eg HEAD~2

specifiy commits or commit ranges in the
same way that `git format-patch` allows

1 files changed, 1 insertions, 0 deletions

diff --git a/test_utils/src/git.rs b/test_utils/src/git.rs
index 7f0b4c7..76656df 100644
--- a/test_utils/src/git.rs
+++ b/test_utils/src/git.rs
@@ -56,6 +56,7 @@ impl GitTestRepo {
     pub fn populate_with_test_branch(&self) -> Result<Oid> {
         self.populate()?;
         self.create_branch("add-example-feature")?;
+        self.checkout("add-example-feature")?;
         fs::write(self.dir.join("f1.md"), "some content")?;
         self.stage_and_commit("add f1.md")?;
         fs::write(self.dir.join("f2.md"), "some content")?;