$ git clone -n https://src.fedoraproject.org/rpms/ghc-path-io.git /var/lib/mock/f38-build-side-42-init-devel-727573-27336/root/chroot_tmpdir/scmroot/ghc-path-io
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-727573-27336/root/chroot_tmpdir/scmroot/ghc-path-io'...
$ git fetch origin ecc031bcd5a60de115ce23664d72aa4d4d518d0b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-path-io
 * [new ref]         ecc031bcd5a60de115ce23664d72aa4d4d518d0b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ecc031b Convert to %autorelease and %autochangelog