$ git clone -n https://src.fedoraproject.org/rpms/ghc-deepseq-generics.git /var/lib/mock/f38-build-side-42-init-devel-807035-28224/root/chroot_tmpdir/scmroot/ghc-deepseq-generics
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-807035-28224/root/chroot_tmpdir/scmroot/ghc-deepseq-generics'...
$ git fetch origin c28eb181e54d0cd944dc7bfcf3e812e1c7b75f73:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-deepseq-generics
 * [new ref]         c28eb181e54d0cd944dc7bfcf3e812e1c7b75f73 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c28eb18 Convert to %autorelease and %autochangelog