$ git clone -n https://src.fedoraproject.org/rpms/ghc-smallcheck.git /var/lib/mock/f38-build-side-42-init-devel-1105693-30074/root/chroot_tmpdir/scmroot/ghc-smallcheck
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1105693-30074/root/chroot_tmpdir/scmroot/ghc-smallcheck'...
$ git fetch origin a55edaf7cd0bcc9917bb89a530735f67a758473b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-smallcheck
 * [new ref]         a55edaf7cd0bcc9917bb89a530735f67a758473b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a55edaf Convert to %autorelease and %autochangelog