$ git clone -n https://src.fedoraproject.org/rpms/haskell-platform.git /var/lib/mock/f45-build-13331-449/root/chroot_tmpdir/scmroot/haskell-platform
Cloning into '/var/lib/mock/f45-build-13331-449/root/chroot_tmpdir/scmroot/haskell-platform'...
$ git fetch origin 75382f7f281fb72fdb5d97dd4b1a9b9fc9ced0f5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/haskell-platform
 * [new ref]         75382f7f281fb72fdb5d97dd4b1a9b9fc9ced0f5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 75382f7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild