Fix ScaleKeepAspect scaling to wrong size (#100) #347

Job	Run time
Documentation	4m 34s
Julia 1 - ubuntu-latest - x64 - push	2m 52s
Julia 1 - ubuntu-latest - x86 - push	3m 28s
Julia 1 - macOS-latest - x64 - push	3m 19s
Julia 1 - windows-latest - x64 - push	3m 45s
Julia 1 - windows-latest - x86 - push	4m 23s
Julia 1.6 - ubuntu-latest - x64 - push	2m 22s
Julia 1.6 - ubuntu-latest - x86 - push	2m 58s
Julia 1.6 - macOS-latest - x64 - push	2m 37s
Julia 1.6 - windows-latest - x64 - push	13m 37s
Julia 1.6 - windows-latest - x86 - push	7m 6s
Julia nightly - ubuntu-latest - x64 - push	2m 46s
Julia nightly - ubuntu-latest - x86 - push	3m 4s
Julia nightly - macOS-latest - x64 - push	3m 7s
Julia nightly - windows-latest - x64 - push	3m 33s
Julia nightly - windows-latest - x86 - push	4m 4s
	1h 7m 35s

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