$ git clone -n https://src.fedoraproject.org/rpms/zsh.git /var/lib/mock/f40-build-2206962-52071/root/chroot_tmpdir/scmroot/zsh
Cloning into '/var/lib/mock/f40-build-2206962-52071/root/chroot_tmpdir/scmroot/zsh'...
$ git fetch origin 82b6281e8c2c5e61a9db8fc6510fc740e50c6be8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/zsh
 * [new ref]         82b6281e8c2c5e61a9db8fc6510fc740e50c6be8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 82b6281 Fix C compatibility issue in the configure script