$ git clone -n https://src.fedoraproject.org/rpms/ghc-uglymemo.git /var/lib/mock/f45-build-10885-425/root/chroot_tmpdir/scmroot/ghc-uglymemo
Cloning into '/var/lib/mock/f45-build-10885-425/root/chroot_tmpdir/scmroot/ghc-uglymemo'...
$ git fetch origin d031687d22e1c01decb6c4ad7e383b6505b8f0cd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-uglymemo
 * [new ref]         d031687d22e1c01decb6c4ad7e383b6505b8f0cd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d031687 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild