$ git clone -n https://src.fedoraproject.org/rpms/fawltydeps.git /var/lib/mock/f40-build-1915287-25086/root/chroot_tmpdir/scmroot/fawltydeps
Cloning into '/var/lib/mock/f40-build-1915287-25086/root/chroot_tmpdir/scmroot/fawltydeps'...
$ git fetch origin b7a168f76e16cb54433b422518a9d5abe5477fd5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fawltydeps
 * [new ref]         b7a168f76e16cb54433b422518a9d5abe5477fd5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b7a168f Drop version pinning on packaging for F40-