$ git clone -n https://src.fedoraproject.org/rpms/ghc-case-insensitive.git /var/lib/mock/f41-build-837920-159471/root/chroot_tmpdir/scmroot/ghc-case-insensitive
Cloning into '/var/lib/mock/f41-build-837920-159471/root/chroot_tmpdir/scmroot/ghc-case-insensitive'...
$ git fetch origin 73339f173ab79e2d87bb8cb7d92962fafec08f92:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-case-insensitive
 * [new ref]         73339f173ab79e2d87bb8cb7d92962fafec08f92 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 73339f1 bump release