$ git clone -n https://src.fedoraproject.org/rpms/python-vcstool.git /var/lib/mock/f45-build-33610-671/root/chroot_tmpdir/scmroot/python-vcstool
Cloning into '/var/lib/mock/f45-build-33610-671/root/chroot_tmpdir/scmroot/python-vcstool'...
$ git fetch origin 73d5ab559e91b719fb276ec35d0559630fdcedb5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-vcstool
 * [new ref]         73d5ab559e91b719fb276ec35d0559630fdcedb5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 73d5ab5 simplify .gitignore file