use correct method to get the file path

src/plugins/findInFiles/findinfileswidget.py

@@ -62,18 +62,8 @@ class FindInFilesWidget(Tab):
     #
 
     def _open_file(self, index: QModelIndex):
-
-        path = []
-        i = index
-        while i.isValid():
-            path.append(i.data())
-            i = i.parent()
-        path.reverse()
-        file = Path()
-        for s in path:
-            file = file / s
-
-        if file.is_file():
+        file = self._model.filePath(index)
+        if Path(file).is_file():
             PluginRegistry.execute_single("open_file", f"{file}")
 
     def _select_base_dir(self):