$ git clone -n https://src.fedoraproject.org/rpms/ghc-simple-cabal.git /var/lib/mock/f38-build-side-42-init-devel-657236-26596/root/chroot_tmpdir/scmroot/ghc-simple-cabal
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-657236-26596/root/chroot_tmpdir/scmroot/ghc-simple-cabal'...
$ git fetch origin 641401ac0fa9b9ea06e8313c1e2356872e4379b4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-simple-cabal
 * [new ref]         641401ac0fa9b9ea06e8313c1e2356872e4379b4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 641401a Convert to %autorelease and %autochangelog