$ git clone -n https://src.fedoraproject.org/rpms/ghc-optparse-simple.git /var/lib/mock/f38-build-side-42-init-devel-1081579-29833/root/chroot_tmpdir/scmroot/ghc-optparse-simple
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1081579-29833/root/chroot_tmpdir/scmroot/ghc-optparse-simple'...
$ git fetch origin aa600e5ff953d1984c1de54208783562fb3a87b3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-optparse-simple
 * [new ref]         aa600e5ff953d1984c1de54208783562fb3a87b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at aa600e5 refresh to cabal-rpm-2.1.0 with SPDX migration