refresh new/rev counts when fillNew/fillRev() fails

This was the behaviour before, but got lost when ._reset_counts() was
added. Also added the check back to schedv2:fillRev(), which also
appears to have gotten lost in the move to ._reset_counts()

Just a stop-gap fix until this code can get a proper rewrite.

pylib/anki/sched.py

@@ -492,6 +492,7 @@ did = ? and queue = {QUEUE_TYPE_REV} and due <= ? limit ?""",
         if recursing:
             print("bug: fillRev()")
             return False
+        self._reset_counts()
         self._resetRev()
         return self._fillRev(recursing=True)
 

pylib/anki/schedv2.py

@@ -346,6 +346,7 @@ order by due"""
         if recursing:
             print("bug: fillNew()")
             return False
+        self._reset_counts()
         self._resetNew()
         return self._fillNew(recursing=True)
 
@@ -862,7 +863,12 @@ limit ?"""
                 self._revQueue.reverse()
                 return True
 
-        return False
+        if recursing:
+            print("bug: fillRev2()")
+            return False
+        self._reset_counts()
+        self._resetRev()
+        return self._fillRev(recursing=True)
 
     def _getRevCard(self) -> Optional[Card]:
         if self._fillRev():