Applied bug fix from trunk r1642405.
Applied patch from jira issue - OFBIZ-5546 - RAW_MATERIAL return/RMA functionality not supported OOTB.
Thanks Harsh for the contribution. 

git-svn-id: https://svn.apache.org/repos/asf/ofbiz/branches/release13.07@1642406 13f79535-47bb-0310-9956-ffa450edef68