$ git clone -n https://src.fedoraproject.org/rpms/ghc-megaparsec.git /var/lib/mock/f38-build-side-42-init-devel-577283-26014/root/chroot_tmpdir/scmroot/ghc-megaparsec
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-577283-26014/root/chroot_tmpdir/scmroot/ghc-megaparsec'...
$ git fetch origin afe13698ced46ab7883de55abfa6f681dd8475ee:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-megaparsec
 * [new ref]         afe13698ced46ab7883de55abfa6f681dd8475ee -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at afe1369 Convert to %autorelease and %autochangelog