$ git clone -n https://src.fedoraproject.org/rpms/ghc-QuickCheck.git /var/lib/mock/f45-build-9936-411/root/chroot_tmpdir/scmroot/ghc-QuickCheck
Cloning into '/var/lib/mock/f45-build-9936-411/root/chroot_tmpdir/scmroot/ghc-QuickCheck'...
$ git fetch origin 9b392c780c4a200ac74e5c928f477a7fcbd17717:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-QuickCheck
 * [new ref]         9b392c780c4a200ac74e5c928f477a7fcbd17717 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9b392c7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild