B136 - Stockpicker Retest does not delete failed strategies

1) Create Retest task by copying settings from Build. When running retest task Failed strategies were not removed, while "Delete failed strategies" switch was on.
2) Create Retest task with settings from scratch. When running retest task Failed strategies were removed, while "Delete failed strategies" switch was on. The strategies that passed were highlighted with exclamation mark as failed. No automatic filters were set.