Merge pull request #7323 from kozlovsky/fix/7321_tooltip_key_error

Fixes #7321 KeyError while surfing through a channel's content

src/tribler/gui/widgets/tablecontentmodel.py

@@ -534,7 +534,7 @@ def item_txt(self, index, role, is_editing: bool = False):
             time_without_microseconds = str(td).partition('.')[0]
             return f'Checked: {time_without_microseconds} ago'
 
-        if role == Qt.ToolTipRole and column_type == Column.NAME:
+        if role == Qt.ToolTipRole and column_type == Column.NAME and "infohash" in item:
             return f'{item["infohash"][:8]}'
 
         # The 'name' column is special in a sense that we want to draw the title and tags ourselves.