$ git clone -n https://src.fedoraproject.org/rpms/python-virtualenvwrapper.git /var/lib/mock/f41-build-738811-13297/root/chroot_tmpdir/scmroot/python-virtualenvwrapper
Cloning into '/var/lib/mock/f41-build-738811-13297/root/chroot_tmpdir/scmroot/python-virtualenvwrapper'...
$ git fetch origin 3848174368ac0c5cb3bcb91d2099adc7e1f03874:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-virtualenvwrapper
 * [new ref]         3848174368ac0c5cb3bcb91d2099adc7e1f03874 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3848174 Eliminate use of obsolete %patchN syntax (#2283636)