$ git clone -n https://src.fedoraproject.org/rpms/ghc-base-compat-batteries.git /var/lib/mock/f38-build-side-42-init-devel-700761-27067/root/chroot_tmpdir/scmroot/ghc-base-compat-batteries
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-700761-27067/root/chroot_tmpdir/scmroot/ghc-base-compat-batteries'...
$ git fetch origin 597ea965c08f7fcf007929a034444a5a0c410d2b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-base-compat-batteries
 * [new ref]         597ea965c08f7fcf007929a034444a5a0c410d2b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 597ea96 Convert to %autorelease and %autochangelog