From 93ad872f9ebe1fd59b694467960610851263f7d9 Mon Sep 17 00:00:00 2001
From: binary1248 <binary1248@hotmail.com>
Date: Sun, 3 Jun 2018 18:55:23 +0200
Subject: [PATCH] Fixed stale FBOs not being erased from the staleFramebuffers
 set after they have been deleted.

---
 src/SFML/Graphics/RenderTextureImplFBO.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/SFML/Graphics/RenderTextureImplFBO.cpp b/src/SFML/Graphics/RenderTextureImplFBO.cpp
index 4a4f1f62..c0debd79 100644
--- a/src/SFML/Graphics/RenderTextureImplFBO.cpp
+++ b/src/SFML/Graphics/RenderTextureImplFBO.cpp
@@ -60,12 +60,18 @@ namespace
     {
         sf::Uint64 contextId = sf::Context::getActiveContextId();
 
-        for (std::set<std::pair<sf::Uint64, unsigned int> >::iterator iter = staleFrameBuffers.begin(); iter != staleFrameBuffers.end(); ++iter)
+        for (std::set<std::pair<sf::Uint64, unsigned int> >::iterator iter = staleFrameBuffers.begin(); iter != staleFrameBuffers.end();)
         {
             if (iter->first == contextId)
             {
                 GLuint frameBuffer = static_cast<GLuint>(iter->second);
                 glCheck(GLEXT_glDeleteFramebuffers(1, &frameBuffer));
+
+                staleFrameBuffers.erase(iter++);
+            }
+            else
+            {
+                ++iter;
             }
         }
     }