Fix: Catch unexpected OCR result on empty skill slot

module/tactical/tactical_class.py

@@ -619,9 +619,11 @@ class RewardTacticalClass(Dock):
             level = skill_level.upper().replace(' ', '')
             # Empty skill slot
             # Probably because all favourite ships have their skill leveled max.
-            # '———l'
+            # '———l', '—l'
             if re.search(r'[—\-一]{2,}', level):
                 continue
+            if re.search(r'[—一]+', level):
+                continue
             # Use 'MA' as a part of `MAX`.
             # SKILL_LEVEL_GRIDS may move a little lower for unknown reason, OCR results are like:
             # ['NEXT:MA', 'NEXT:/1D]', 'NEXT:MA'] (Actually: `NEXT:MAX, NEXT:0/100, NEXT:MAX`)