$ git clone -n https://src.fedoraproject.org/rpms/ubertooth.git /var/lib/mock/f45-build-37568-715/root/chroot_tmpdir/scmroot/ubertooth
Cloning into '/var/lib/mock/f45-build-37568-715/root/chroot_tmpdir/scmroot/ubertooth'...
$ git fetch origin 94388df939f1d438c6486f2a1d5d0261ac574e4b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ubertooth
 * [new ref]         94388df939f1d438c6486f2a1d5d0261ac574e4b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 94388df Convert to %autorelease and %autochangelog