[Shared] misc loop overrun fixes #209

Job	Run time
WinXP x86 Release (Non-Portable)	12m 22s
macOS x86_64 Debug (Non-Portable)	3m 7s
Ubuntu x86 Debug (Non-Portable)	3m 26s
macOS x86_64 Release (Non-Portable)	3m 50s
WinXP x86_64 Release (Non-Portable)	11m 44s
Windows x86 Debug (Non-Portable)	3m 19s
Ubuntu x86 Release (Non-Portable)	4m 34s
Windows x86 Release (Portable)	3m 56s
Ubuntu x86_64 Debug (Non-Portable)	2m 39s
Windows x86 Release (Non-Portable)	4m 8s
Ubuntu x86_64 Release (Non-Portable)	3m 42s
Windows x86_64 Debug (Non-Portable)	3m 23s
Windows x86_64 Release (Portable)	4m 17s
Windows x86_64 Release (Non-Portable)	4m 0s
create-release	0s
create-latest	0s
	1h 8m 27s

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