$ git clone -n https://src.fedoraproject.org/rpms/ghc-th-lift.git /var/lib/mock/f38-build-side-42-init-devel-807828-28235/root/chroot_tmpdir/scmroot/ghc-th-lift
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-807828-28235/root/chroot_tmpdir/scmroot/ghc-th-lift'...
$ git fetch origin 90c83cf95c38fb3a0bd63e81b67d8bf89e3b9cce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-th-lift
 * [new ref]         90c83cf95c38fb3a0bd63e81b67d8bf89e3b9cce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 90c83cf Convert to %autorelease and %autochangelog