$ git clone -n https://src.fedoraproject.org/rpms/ghc-cryptonite.git /var/lib/mock/f38-build-side-42-init-devel-875291-28452/root/chroot_tmpdir/scmroot/ghc-cryptonite
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-875291-28452/root/chroot_tmpdir/scmroot/ghc-cryptonite'...
$ git fetch origin 2ee8f02a9481ba33f93acdeaef816d6ea9a58b97:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-cryptonite
 * [new ref]         2ee8f02a9481ba33f93acdeaef816d6ea9a58b97 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2ee8f02 Convert to %autorelease and %autochangelog