PostReceiveR hook handler: Don't raise error, otherwise VCS push fails

src/Vervis/Handler/Repo.hs

@@ -522,8 +522,7 @@ postRepoUnfollowR :: KeyHashid Repo -> Handler ()
 postRepoUnfollowR _ = error "Temporarily disabled"
 
 postPostReceiveR :: Handler Text
-postPostReceiveR = do
-    error "Temporarily disabled"
+postPostReceiveR = return "Temporarily disabled, no Push activity published"
     {-
     push <- requireCheckJsonBody
     (pushAP, shr, rp) <- push2ap push