From 48c3e25d3751e3783cb83dea53cd4a1bfe4d42b0 Mon Sep 17 00:00:00 2001
From: Gregor Kleen <kleen@cip.ifi.lmu.de>
Date: Mon, 29 Apr 2019 14:30:31 +0200
Subject: [PATCH] Fix #343

---
 src/Foundation.hs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Foundation.hs b/src/Foundation.hs
index 8b2769cea..88b202949 100644
--- a/src/Foundation.hs
+++ b/src/Foundation.hs
@@ -652,6 +652,7 @@ tagAccessPredicate AuthTime = APDB $ \mAuthId route _ -> case route of
       SFileR SheetExercise _ -> guard $ sheetActiveFrom <= cTime
       SFileR SheetHint     _ -> guard $ maybe False (<= cTime) sheetHintFrom
       SFileR SheetSolution _ -> guard $ maybe False (<= cTime) sheetSolutionFrom
+      SFileR _             _ -> mzero
       SubmissionNewR         -> guard   active
       SubmissionR _ SAssignR -> guard   marking -- Correctors can only be assigned when the Sheet is inactive, since submissions are subject to change
       SubmissionR _ _        -> guard   active