$ git clone -n https://src.fedoraproject.org/rpms/ghc-cryptonite.git /var/lib/mock/f45-build-10169-414/root/chroot_tmpdir/scmroot/ghc-cryptonite
Cloning into '/var/lib/mock/f45-build-10169-414/root/chroot_tmpdir/scmroot/ghc-cryptonite'...
$ git fetch origin 1cb4b1d89e922a02e6371eb3dfc4845b79f81638:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-cryptonite
 * [new ref]         1cb4b1d89e922a02e6371eb3dfc4845b79f81638 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1cb4b1d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild