Merge pull request #6141 from Goober5000/emp_scramble_flag #620

Job	Run time
Linux (Debug, gcc-9)	11m 16s
Linux (Debug, gcc-13)	10m 9s
Linux (Debug, clang-16)	11m 18s
Linux (Release, gcc-9)	8m 32s
Linux (Release, gcc-13)	8m 14s
Linux (Release, clang-16)	10m 24s
Linux (Debug, gcc-13, -DFSO_BUILD_WITH_OPENGL=OFF -DFSO_BUILD_WITH_VULKAN=OFF)	9m 32s
Linux (Release, gcc-13, -DFSO_BUILD_WITH_OPENGL=OFF -DFSO_BUILD_WITH_VULKAN=OFF)	8m 11s
	1h 17m 36s

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