Use the value of regresed_by in crafting the training classes for the RegressionRange model

[NobleMathews]

Currently, we use the regressionwindow-wanted keyword and the value of the cf_has_regression_range field to determine whether there is a regression range:

We should also use the value of the regresed_by field. If there is a value in the field, we should consider it as "has regression range".

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[mayil-ai[bot]]

To address the requirement of updating the RegressionRangeModel to consider the regressed_by field as an indication of a regression range, follow these steps:

• Open the bugbug/models/regressionrange.py file.
• Locate the get_labels method within the RegressionRangeModel class.
• Modify the method to include a new conditional check for the regressed_by field. If this field is not empty, it should indicate that the bug has a regression range.
• Add the following code snippet to the get_labels method:

elif bug_data.get("regressed_by"):  # Check if 'regressed_by' field has a value
    classes[bug_id] = 1  # Treat presence of 'regressed_by' as an indication of regression range

• Ensure that the rest of the method logic remains unchanged, and the method still logs the number of bugs with and without a regression range.
• Save the changes to the regressionrange.py file.
• Test the updated get_labels method to confirm that it now correctly identifies bugs with a regression range based on the regressed_by field, in addition to the existing checks for the regressionwindow-wanted keyword and the cf_has_regression_range field.

Code snippets to check

• bugbug/models/regressionrange.py:22-102 | Snippet includes logic for determining regression range, needs update to consider 'regressed_by' field.

• bugbug/models/defect.py:173-238 | Contains logic that checks 'regressed_by' field, relevant for updating 'RegressionRangeModel'.

• bugbug/models/regression.py:1-50 | It includes the 'get_labels' method from the 'RegressionModel' class, which is relevant for determining class labels for regression bugs and may need to be reviewed for consistency with the changes being made to the RegressionRangeModel.