Current documentation and '?' help on field ''Polling build filters' does not state that this is not Perforce syntax. For example current documentation is:

 
Depot path filter
Changes can be filtered to not trigger a build; if all the files within a change match the specified path, the build is filtered.

For example, with a Filter of " //depot/main/tests ":

Case A (change will be filtered):

Files:

• //depot/main/tests/index.xml
• //depot/main/tests/001/test.xml
• //depot/main/tests/002/test.xml

Case B (change will not be filtered, as build.xml is outside of the filter):

Files:

• //depot/main/src/build.xml
• //depot/main/tests/004/test.xml
• //depot/main/tests/005/test.xml