Unable to debug or run tests after first debug (message 'Running Tests' displayed in status bar)

[DonJayamanne]

• Create workspace
• Create a folder with tests directory
• Create a file named tests\test_one.py with the following content:

import unittest
import sys

class test_one(unittest.TestCase):
    def test_this(self):
        print("ONE")
        self.assertTrue(True)

• Configure tests using pytest
• Run a test (works)
• Debug a test (works, however the message Running Tests will not go away)

Repo https://github.com/DonJayamanne/testingRepo