Do not automatically add reviewers from footer lines to draft patch sets

Gerrit already avoids adding reviewers from footer lines when a new
draft change is created (ea7ba1a17aed8882ed422bf162d7f8050039eff8). Now
the same is done for draft patch sets.

In addition slightly optimize the check for new draft changes by checking
the draft state outside the loop over the footers.

Change-Id: I5bdf34e0fd629722fa54b7225e85e52248661fb0
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>
1 file changed