$ git clone -n https://src.fedoraproject.org/rpms/audacity.git /var/lib/mock/f40-build-800911-143670/root/chroot_tmpdir/scmroot/audacity
Cloning into '/var/lib/mock/f40-build-800911-143670/root/chroot_tmpdir/scmroot/audacity'...
$ git fetch origin 412af13747fdd41b5f15efd844fa4b0f8af847eb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/audacity
 * [new ref]         412af13747fdd41b5f15efd844fa4b0f8af847eb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 412af13 3.4.2