make sure cramming works if there are no selected groups

anki/cram.py

@@ -62,14 +62,18 @@ class CramScheduler(Scheduler):
             maxlim = "and due <= %d" % (self.today+1+self.max)
         else:
             maxlim = ""
+        if self.gids:
+            extra = "and gid in "+ids2str(self.gids)
+        else:
+            extra = ""
         self.newQueue = self.db.list("""
 select id from cards where queue = 2 and due >= %d
 %s
-and gid in %s order by %s limit %d""" % (self.today+1+self.min,
-                                         maxlim,
-                                         ids2str(self.gids),
-                                         self.order,
-                                         self.reportLimit))
+%s order by %s limit %d""" % (self.today+1+self.min,
+                              maxlim,
+                              extra,
+                              self.order,
+                              self.reportLimit))
         self.newCount = len(self.newQueue)
 
     def _resetRev(self):

tests/test_sched.py

@@ -383,6 +383,9 @@ def test_cram():
     d.sched.answerCard(c, 3)
     assert c.ivl == 1
     assert c.due == d.sched.today + 1
+    # users should be able to cram entire deck too
+    d.cramGroups([])
+    assert d.sched.counts()[0] > 0
 
 def test_cramLimits():
     d = getEmptyDeck()