From 9a46fc58911e87de86b52e34f9571d5fe656db16 Mon Sep 17 00:00:00 2001
From: itsmattkc <itsmattkc@gmail.com>
Date: Mon, 21 Sep 2020 12:28:47 +1000
Subject: [PATCH] cache: invalidate AFTER iterating map

Fixes #1183
---
 app/render/framehashcache.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/app/render/framehashcache.cpp b/app/render/framehashcache.cpp
index b65234dc5..387baa12e 100644
--- a/app/render/framehashcache.cpp
+++ b/app/render/framehashcache.cpp
@@ -358,12 +358,17 @@ void FrameHashCache::HashDeleted(const QString& s, const QByteArray &hash)
     return;
   }
 
+  TimeRangeList ranges_to_invalidate;
   QMap<rational, QByteArray>::const_iterator i;
   for (i=time_hash_map_.constBegin(); i!=time_hash_map_.constEnd(); i++) {
     if (i.value() == hash) {
-      Invalidate(TimeRange(i.key(), i.key() + timebase_));
+      ranges_to_invalidate.InsertTimeRange(TimeRange(i.key(), i.key() + timebase_));
     }
   }
+
+  foreach (const TimeRange& range, ranges_to_invalidate) {
+    Invalidate(range);
+  }
 }
 
 void FrameHashCache::ProjectInvalidated(Project *p)