Fix geopandas legend tests by not clearing figure.html on render

Geopandas explore() adds legend HTML directly to figure.html. Clearing
output sections in Figure.render() removed that content. Stable script
names for SetIcon and ElementAddToElement are enough for idempotent save().

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: vraj2131

folium/figure.py

@@ -2,22 +2,9 @@
 
 from branca.element import Figure as BrancaFigure
 
+# Re-export branca Figure for folium maps. Rendering must not clear
+# figure.html children that were added directly (e.g. geopandas legends).
 
-class Figure(BrancaFigure):
-    """Figure that supports repeated rendering without duplicating output.
-
-    Branca elements populate ``header``, ``html``, and ``script`` during
-    ``render()``. Some folium elements create new child nodes on every render
-    call, which causes repeated ``save()`` calls to accumulate duplicate HTML
-    and JavaScript. Clearing the rendered sections before each render makes
-    output idempotent while preserving static header content from ``__init__``.
-    """
 
-    def render(self, **kwargs):
-        meta = self.header._children.pop("meta_http", None)
-        self.header._children.clear()
-        if meta is not None:
-            self.header._children["meta_http"] = meta
-        self.html._children.clear()
-        self.script._children.clear()
-        return super().render(**kwargs)
+class Figure(BrancaFigure):
+    """Figure used as the root container for folium maps."""