shading-pattern: While drawing patterns, transform to the baseTransform first

src/display/canvas.js

@@ -1089,6 +1089,9 @@ var CanvasGraphics = (function CanvasGraphicsClosure() {
 
       if (isPatternFill) {
         ctx.save();
+        if (this.baseTransform) {
+          ctx.setTransform.apply(ctx, this.baseTransform);
+        }
         ctx.fillStyle = fillColor.getPattern(ctx, this);
         needRestore = true;
       }

test/pdfs/.gitignore

@@ -181,6 +181,7 @@
 !issue6081.pdf
 !issue6069.pdf
 !issue6106.pdf
+!issue6296.pdf
 !bug1001080.pdf
 !issue6108.pdf
 !issue6113.pdf

test/test_manifest.json

@@ -2510,6 +2510,12 @@
        "link": true,
        "type": "eq"
     },
+    {  "id": "issue6296.pdf",
+       "file": "pdfs/issue6296.pdf",
+       "md5": "734e191aab1372e6fd7523ca7751fcf0",
+       "rounds": 1,
+       "type": "eq"
+    },
     {  "id": "issue5549.pdf",
        "file": "pdfs/issue5549.pdf",
        "md5": "6c36df6ebc583c9e18aad0ad00d257b8",