$ git clone -n https://src.fedoraproject.org/rpms/ghc-aeson-pretty.git /var/lib/mock/f38-build-side-42-init-devel-726923-27330/root/chroot_tmpdir/scmroot/ghc-aeson-pretty
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-726923-27330/root/chroot_tmpdir/scmroot/ghc-aeson-pretty'...
$ git fetch origin e9e7c4481ba89096b3e1c4575d83f29dd5495e5b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-aeson-pretty
 * [new ref]         e9e7c4481ba89096b3e1c4575d83f29dd5495e5b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e9e7c44 Convert to %autorelease and %autochangelog