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Fix potential violation of invariant
The shared function for reading back context attributes, _glfwRefreshContextAttribs, did not check whether the newly created context had been successfully made current. This violated the invariant that the context TLS slot always points to a valid window and that its context is current whenever _glfw.platform.getProcAddress is called. Related to #2327 This was adapted to 3.3-stable fromfa0ea5c41f
andddd92a4fa8
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@ -202,6 +202,7 @@ video tutorials.
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- Matt Sealey
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- Steve Sexton
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- Arkady Shapkin
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- Mingjie Shen
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- Ali Sherief
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- Yoshiki Shibukawa
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- Dmitri Shuralyov
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@ -124,6 +124,7 @@ information on what to include when reporting a bug.
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## Changelog
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- Bugfix: `glfwGetKeyScancode` returned `0` on error when initialized instead of `-1`
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- Bugfix: Failure to make a newly created context current could cause segfault (#2327)
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- [Win32] Fix pkg-config for dynamic library on Windows (#2386, #2420)
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- [Win32] Bugfix: `glfwWaitEventsTimeout` did not return for some sent messages (#2408)
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- [Wayland] Added improved fallback window decorations via libdecor (#1639,#1693)
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@ -363,6 +363,8 @@ GLFWbool _glfwRefreshContextAttribs(_GLFWwindow* window,
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previous = _glfwPlatformGetTls(&_glfw.contextSlot);
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glfwMakeContextCurrent((GLFWwindow*) window);
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if (_glfwPlatformGetTls(&_glfw.contextSlot) != window)
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return GLFW_FALSE;
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window->context.GetIntegerv = (PFNGLGETINTEGERVPROC)
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window->context.getProcAddress("glGetIntegerv");
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