BUG: Prevent SIGSEGV in VectorImage SetPixel with shorter source VLV#6087

hjmjohnson merged 1 commit intoInsightSoftwareConsortium:mainInsightSoftwareConsortium/ITK:mainfrom

hjmjohnson:fix-vlv-null-regressionhjmjohnson/ITK:fix-vlv-null-regressionCopy head branch name to clipboard