Mercurial include / exclude options not working

Question

I am using Mercurial version version 3.8.4 on Windows 8.1. when I run this command:

> hg status                                  
M Program.cs                                 
? asd\gfgfdg\asdasd\asdasd\ghfg.txt          
? asd\gfgfdg\asdasd\erert.txt                
? asd\gfgfdg\ggdfg.txt                       
? asd\gfgfdg\ghfh.txt 

the output is the same for all of these commands, which it shouldn't be (unless I am misunderstanding the documentation):

hg status -X "**.txt"

hg status -X '**.txt'

hg status -X "glob:**.txt"

hg status -X 'glob:**.txt'

hg status -X "set:**.txt"

hg status -X 'set:**.txt'

hg status -X "*.txt"