From 66199a99dca9a1be6fcd522613c8a4175951f11d Mon Sep 17 00:00:00 2001
From: Christian Mollekopf <chrigi_1@fastmail.fm>
Date: Tue, 14 Feb 2017 00:06:05 +0100
Subject: Avoid crashing if we get too many notifications.

If notifications come in faster than we can process them we'd run into
the assert.
---
 common/queryrunner.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/common/queryrunner.cpp b/common/queryrunner.cpp
index 40880eb..1b142c8 100644
--- a/common/queryrunner.cpp
+++ b/common/queryrunner.cpp
@@ -120,6 +120,10 @@ QueryRunner<DomainType>::QueryRunner(const Sink::Query &query, const Sink::Resou
                 fetcher({});
                 return KAsync::null();
             }
+            if (mQueryInProgress) {
+                //Can happen if the revision come in quicker than we process them.
+                return KAsync::null();
+            }
             Q_ASSERT(!mQueryInProgress);
             return KAsync::syncStart<void>([&] {
                     mQueryInProgress = true;
-- 
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