Within the fixversion block, prioritize by due date

src/rules/team/fixversion_rank.py

@@ -91,7 +91,10 @@ class FixVersionBlock(Block):
     """A special-case block that gets ranked to the top"""
 
     def yield_issues(self):
-        yield from sorted(self.issues, key=self._earliest_fixversion_date)
+        """ Within the fixversion block, issues get sorted by due date """
+        duedate_field_id = self.issues[0].raw["Context"]["Field Ids"]["Due Date"]
+        duedate = lambda issue: getattr(issue.fields, duedate_field_id)
+        yield from sorted(self.issues, key=duedate)
 
     @property
     def rank(self):
@@ -100,20 +103,6 @@ def rank(self):
     def claims(self, issue) -> bool:
         return self._claims(issue)
 
-    @staticmethod
-    def _earliest_fixversion_date(issue):
-        fixversions = issue.fields.fixVersions
-        if not fixversions:
-            return None
-        dates = [
-            fixversion.releaseDate
-            for fixversion in fixversions
-            if hasattr(fixversion, "releaseDate")
-        ]
-        if not dates:
-            return None
-        return sorted(dates)[0]
-
     @staticmethod
     def _claims(issue) -> bool:
         critical_deadline = (