Unable to filter tasks by subproject

[jubnzv]

It seems that filtering by project in taskwhisperer doesn't work with taskwarrior subprojects.

A subproject is a nested project that is separated from the main project by a period symbol. More information about subprojects is available in this blogpost and Dirk Deimeke's slides.

Here are steps to reproduce this issue.

Create demo tasks:

task add pro:a   test1   # Main project 'a'  
task add pro:a.b test2   # Main project 'a', subproject 'b'

In taskwhisperer we'll see, that tasks can be filtered by main project 'a':

But we can't filter tasks by 'b' subproject: