Bug fix detection

[jan-gerling]

During the data validation I noticed that the detection of bug fixes based on the commit messages is sometimes incorrect. I will add some examples here:

Examples:

1.

File History: https://github.com/krishagni/openspecimen/commits/beef30d32378581db842fd19fd5437070722fb9b/WEB-INF/src/com/krishagni/catissueplus/core/common/events/AbstractListCriteria.java
Relevant Commit: krishagni/openspecimen@db4753c#diff-5ecfe971bf7c3345eb4e476482033cec
Wrong Keyword: error

2.

File History: https://github.com/xm-online/xm-ms-entity/commits/1fd7985604c9f1aeff7ff77e00860032b69ff41d/src/test/java/com/icthh/xm/ms/entity/web/rest/XmEntityResourceIntTest.java
Relevant Commit: xm-online/xm-ms-entity@a2ec1b3#diff-167880e1fbe9e0c65144887bf5b3e052
Wrong Keyword: Fix

3.

File History: https://github.com/altsoft/PlatypusJS/commits/78b6e616be877a283612362f3f08b7c41471acc1/application/src/components/Forms/src/com/eas/client/forms/FormRunner.java
Relevant Commit: altsoft/PlatypusJS@0e6f5b4#diff-523abf9169c354dd326f98cf85c58e35
Wrong Keyword: Debbuger was detected as bug

Potential Causes:

We check if a commit message contains one of the keywords. This can lead to false positives: e.g. see Example 3.
https://github.com/refactoring-ai/predicting-refactoring-ml/blob/fdf3753fb35b4d4e699d1f6fbb2329441d11988a/data-collection/src/main/java/refactoringml/ProcessMetricTracker.java#L22-L27