WorldServer - how do I prevent SIDs to be written into a TM entry created with the Java Properties File Type?

Java Properties File Types support SIDs per default. They are enabled automatically in this file type. There is no configuration that can enable it or disable it as is the case for the Custom XML file types, as explained in this article

Are Segment Identifiers (SIDs) supported for FTS filters/File Types in WorldServer?

So how do I disable the usage of SID for this filter?

You can only disable the usage of SIDs for this filter by disabling it globally. This can only be done by setting this property to false in tm.properties:

enable_sid_lookup=false

However, this will disable the usage of SIDs for all other file types or content.

Disabling SID lookup should not affect TM leverage.