Deleting all duplicates of a WorldServer Translation Memory with MS SQL server, the deletion is not case sensitive

When searching for duplicate TM entries, the difference of Uppercase/Lowercase is also detected as duplicate even though following Duplicate Attributes are added to "Included Attributes" in the Duplicates configuration as described in this article: How to delete TM Duplicates from WorldServer Translation Memories :

Previous Source Entry
Source Entry
Next Source Entry
Target Entry

Defect CRQ-4539 is fixed in WorldServer version 11.6. Moreover, a Hotfix has been delivered for version 11.4.2.

If you encounter an error Expression type int is invalid for COLLATE clause during the search, please refer to this article:

WorldServer - after installing Hotfix CRQ-4539, searching for dupliactes with recommended parameters leads to internal error "Expression type int is invalid for COLLATE clause."
 

Note: WorldServer does not support case-sensitive SQL Server. To use WorldServer with SQL Server, you must configure SQL Server to be case-insensitive.
The same case-sensitivity restriction applies to Enterprise and Standard Editions, and to both 32-bit and 64-bit versions of the SQL Server RDBMS.

See also this section of the RWS Documentation.

However, we have identified this behavior as defect. This is related to defect CRQ-4539.