Blame SOURCES/ghostscript-cve-2020-16293.patch

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diff --git a/base/gxblend.c b/base/gxblend.c
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index 7c3d55b..55215d6 100644
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--- a/base/gxblend.c
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+++ b/base/gxblend.c
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@@ -2174,7 +2174,7 @@ pdf14_compose_group(pdf14_buf *tos, pdf14_buf *nos, pdf14_buf *maskbuf,
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              overprint == 0) {
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              /* Additive vs Subtractive makes no difference in normal blend mode with no spots */
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         if (tos_isolated) {
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-            if (has_mask || maskbuf) {/* 7% */
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+            if (has_mask && maskbuf) {/* 7% */
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                 /* AirPrint test case hits this */
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                 if (maskbuf && maskbuf->rect.p.x <= x0 && maskbuf->rect.p.y <= y0 &&
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                     maskbuf->rect.q.x >= x1 && maskbuf->rect.q.y >= y1)