Artifacts show when using Minecraft's native panorama creator

[VindSole]

When using the native panorama creator, activating using the "-DMC_DEBUG_ENABLED -DMC_DEBUG_PANORAMA_SCREENSHOT" JVM argument or a mod that activates the code, there is a few artifacts in the sky, showing some dot artifacts and distorting the horizon fog. Setting "avoid_redundant_framebuffer_switching" to false fixes the issue, but since it's enabled by default I think it qualifies as a bug.