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				@@ -46,7 +46,7 @@ const ChartPreviewBtn = (props: { 
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				         }, 
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				         null, // files 
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				       ); 
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				- 
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				+      previewNode.replaceChildren(); 
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				       previewNode.appendChild(svg); 
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				       if (props.selected) { 
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				@@ -55,7 +55,7 @@ const ChartPreviewBtn = (props: { 
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				     })(); 
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				     return () => { 
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				-      previewNode.removeChild(svg); 
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				+      previewNode.replaceChildren(); 
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				     }; 
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				   }, [props.spreadsheet, props.chartType, props.selected]); 
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