$ git clone -n https://src.fedoraproject.org/rpms/timew.git /var/lib/mock/f41-build-59167108-6571410/root/chroot_tmpdir/scmroot/timew
Cloning into '/var/lib/mock/f41-build-59167108-6571410/root/chroot_tmpdir/scmroot/timew'...
$ git fetch origin 1c1ac71ba28862852accc00efb94515badb90e43:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/timew
 * [new ref]         1c1ac71ba28862852accc00efb94515badb90e43 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1c1ac71 Update to 1.8.0 upstream release