$ git clone -n https://src.fedoraproject.org/rpms/dwarves.git /var/lib/mock/f45-build-46569-846/root/chroot_tmpdir/scmroot/dwarves
Cloning into '/var/lib/mock/f45-build-46569-846/root/chroot_tmpdir/scmroot/dwarves'...
$ git fetch origin 50acc9af9560e0f74688c7ebc679bb53151fc62a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dwarves
 * [new ref]         50acc9af9560e0f74688c7ebc679bb53151fc62a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 50acc9a New upstream release: 1.32