Alfresco 7.0 CMIS request return cm:desctiption value as of cmis:description. Database created in 4.2 and migrated to 7.0. Node have got differant values of both parameters - cm:desctiption and cmis:description.
In other words, cmis request to Alfresco 4.2 return propper cmis:description value from cmis:description parameter and cm:description value from cm:description parameter. Alfresco 7.0 ignore cmis:description and return both value from cm:description parameter. Look at scrrenshots.
This is the same node in:
CMIS to Alfresco 4.2
CMIS to Alfresco 7.0
Node browser in Alfresco 7.0. It confirm differant values.