Remove trailing comma from the text representation

Author: rolandgeider

manage.py

@@ -135,7 +135,7 @@ def round_value(x: int | float, base: float = 5) -> Decimal:
             rir = round_value(self.rir, 0.5)
             out.append(f'@ {rir} {_("RiR")}')
 
-        return ' '.join(out)
+        return ' '.join(out).strip(',')
 
 
 @dataclass

wger/manager/dataclasses.py

@@ -104,6 +104,15 @@ def test_text_repr_sets_and_weight_range(self):
         self.config.max_weight = 30
         self.assertEqual(self.config.text_repr, '3 Sets, 4 × 20-30 kg @ 3 RiR')
 
+    def test_text_repr_only_sets(self):
+        self.config.sets = 3
+        self.config.weight = None
+        self.config.max_weight = None
+        self.config.max_reps = None
+        self.config.reps = None
+        self.config.rir = None
+        self.assertEqual(self.config.text_repr, '3 Sets')
+
     def test_rpe_calculation(self):
         self.assertEqual(self.config.rpe, 7)