Avoid memory leak

PowerKiKi · PowerKiKi · commit ea2d4b96f670 · 2021-05-17T11:19:19.000+09:00
When creating a spreadsheet, and writing to Xlsx, then to Xls, then reading the Xls, it would leak memory during reading. Fixes #2092
diff --git a/src/PhpSpreadsheet/Worksheet/Worksheet.php b/src/PhpSpreadsheet/Worksheet/Worksheet.php
@@ -399,6 +399,7 @@ public function __destruct()
         Calculation::getInstance($this->parent)->clearCalculationCacheForWorksheet($this->title);
 
         $this->disconnectCells();
+        $this->rowDimensions = [];
     }
 
     /**

Original file line number	Diff line number	Diff line change
`@@ -399,6 +399,7 @@ public function __destruct()`
`399`	`399`	`Calculation::getInstance($this->parent)->clearCalculationCacheForWorksheet($this->title);`
`400`	`400`
`401`	`401`	`$this->disconnectCells();`
	`402`	`+ $this->rowDimensions = [];`
`402`	`403`	`}`
`403`	`404`
`404`	`405`	`/**`