[zanata/zanata-platform] cba03d: fix(ZNTA-2387): catch some newly FB exposed NPEs

[GitHub]

  Branch: refs/heads/ZNTA-2387-deeper-user-search
  Home:   https://github.com/zanata/zanata-platform
  Commit: cba03da1c2561556ee307d3a6dc6cad27a12b7a8
      https://github.com/zanata/zanata-platform/commit/cba03da1c2561556ee307d3a6dc6cad27a12b7a8
  Author: Damian Jansen <djansen at redhat.com>
  Date:   2018-04-27 (Fri, 27 Apr 2018)

  Changed paths:
    M server/services/src/main/java/org/zanata/action/UserAction.java
    M server/services/src/main/java/org/zanata/service/impl/RegisterServiceImpl.java

  Log Message:
  -----------
  fix(ZNTA-2387): catch some newly FB exposed NPEs