$ git clone -n https://src.fedoraproject.org/rpms/ghc-config-ini.git /var/lib/mock/f38-build-side-42-init-devel-682140-26742/root/chroot_tmpdir/scmroot/ghc-config-ini
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-682140-26742/root/chroot_tmpdir/scmroot/ghc-config-ini'...
$ git fetch origin 0f6be6a80d630c3d708cd0a4e8ac8e097deefd09:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-config-ini
 * [new ref]         0f6be6a80d630c3d708cd0a4e8ac8e097deefd09 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0f6be6a Convert to %autorelease and %autochangelog