$ git clone -n https://src.fedoraproject.org/rpms/ghc-attoparsec-iso8601.git /var/lib/mock/f40-build-743556-111265/root/chroot_tmpdir/scmroot/ghc-attoparsec-iso8601
Cloning into '/var/lib/mock/f40-build-743556-111265/root/chroot_tmpdir/scmroot/ghc-attoparsec-iso8601'...
$ git fetch origin a36d79302cc80558711a016c863a8535977637ca:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-attoparsec-iso8601
 * [new ref]         a36d79302cc80558711a016c863a8535977637ca -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a36d793 https://hackage.haskell.org/package/attoparsec-iso8601-1.1.0.0/changelog