$ git clone -n https://src.fedoraproject.org/rpms/dino.git /var/lib/mock/f42-build-side-1-3506325-45996/root/chroot_tmpdir/scmroot/dino
Cloning into '/var/lib/mock/f42-build-side-1-3506325-45996/root/chroot_tmpdir/scmroot/dino'...
$ git fetch origin 8b9eb9df612a42ef8a08d45a4a8226ca8b23d4f3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dino
 * [new ref]         8b9eb9df612a42ef8a08d45a4a8226ca8b23d4f3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8b9eb9d Switch to autochangelog macro