Fix Search opening group-bound GeoJson popups

folium/plugins/search.py

@@ -73,8 +73,14 @@ class Search(JSCSSMixin, MacroElement):
                     {% if this.options %}
                     e.layer.setStyle({{ this.options|tojavascript }});
                     {% endif %}
-                    if(e.layer._popup)
+                    if(e.layer._popup) {
                         e.layer.openPopup();
+                    } else if ({{this.layer.get_name()}}.getPopup()) {
+                        // GeoJsonPopup is bound to the group. Temporarily bind it
+                        // to the found feature so its content uses that feature.
+                        e.layer.bindPopup({{this.layer.get_name()}}.getPopup())
+                            .openPopup().unbindPopup();
+                    }
                 })
                 {{this.layer.get_name()}}searchControl.on('search:collapsed', function(e) {
                         {{this.layer.get_name()}}.setStyle(function(feature){

tests/plugins/test_search.py

@@ -0,0 +1,21 @@
+import folium
+from folium.plugins import Search
+from folium.utilities import normalize
+
+
+def test_search_opens_popup_bound_to_geojson_group():
+    m = folium.Map([0, 0], tiles=None)
+    layer = folium.GeoJson(
+        {
+            "type": "Feature",
+            "properties": {"name": "Example"},
+            "geometry": {"type": "Point", "coordinates": [0, 0]},
+        },
+        popup=folium.GeoJsonPopup(fields=["name"]),
+    ).add_to(m)
+    search = Search(layer, search_label="name").add_to(m)
+    rendered = normalize(search._template.module.script(search))
+
+    # GeoJsonPopup is bound to the group, not to each indexed feature.
+    assert normalize(f"else if ({layer.get_name()}.getPopup())") in rendered
+    assert normalize(f"e.layer.bindPopup({layer.get_name()}.getPopup()).openPopup().unbindPopup();") in rendered