[12gevmoller_sim] [EXTERNAL] [JeffersonLab/remoll] ccdefb: fix lingering z0r0 bug

[cipriangal]

  Branch: refs/heads/test-hevac-addTgtColl1Shlding
  Home:   https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_JeffersonLab_remoll&d=DwICaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=-0uahHXTLsQsllHBZNHgOynLaY6DUxqehsUJ91-BlNY&m=kodO6nluGi3Sl3gOYYArLCKZzvXC-4oEMI6Eh5FdeTs&s=URxNuHKEzTwTw6Yt6JjYjZVyKsw_iqN-55uyjrIt5ZY&e= 
  Commit: ccdefbf5c91df620eefef6f2f03311ca565d8340
      https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_JeffersonLab_remoll_commit_ccdefbf5c91df620eefef6f2f03311ca565d8340&d=DwICaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=-0uahHXTLsQsllHBZNHgOynLaY6DUxqehsUJ91-BlNY&m=kodO6nluGi3Sl3gOYYArLCKZzvXC-4oEMI6Eh5FdeTs&s=hNfI4PThhGbt5oU3qcryKgmsTMx_Q-wtiIjFA6hO-sQ&e= 
  Author: Ciprian Gal <ciprian at jlab.org>
  Date:   2020-01-26 (Sun, 26 Jan 2020)

  Changed paths:
    M analysis/shieldingAna.C

  Log Message:
  -----------
  fix lingering z0r0 bug