Testsuite and progress bar
Some of the tests in the testsuite display an error with the progress bar, which indicates something going wrong in the code.
Internal warning: progress_bar called with actual 2 > max 1
Internal warning: progress_bar called with actual 3 > max 1
Internal warning: progress_bar called with actual 4 > max 1
Internal warning: progress_bar called with actual 5 > max 1
Internal warning: progress_bar called with actual 6 > max 1
Internal warning: progress_bar called with actual 7 > max 1