diff --git a/common/src/app/common/geom/bounds_map.cljc b/common/src/app/common/geom/bounds_map.cljc
index 55230c9c0b..86bf10b756 100644
--- a/common/src/app/common/geom/bounds_map.cljc
+++ b/common/src/app/common/geom/bounds_map.cljc
@@ -79,10 +79,10 @@
              (loop [new-ids
                     (->> (cfh/get-parent-seq objects cid)
                          (take-while #(and (cfh/group-like-shape? %)
-                                           (not (.has ids %))))
+                                           (not (.has ids (:id %)))))
                          (seq))]
                (when (some? new-ids)
-                 (.add ids (first new-ids))
+                 (.add ids (:id (first new-ids)))
                  (recur (next new-ids))))
              (recur (next base-ids)))))
        ids)))
diff --git a/common/test/common_tests/geom_shapes_intersect_test.cljc b/common/test/common_tests/geom_shapes_intersect_test.cljc
index e6c73b0474..1ae12ef2b7 100644
--- a/common/test/common_tests/geom_shapes_intersect_test.cljc
+++ b/common/test/common_tests/geom_shapes_intersect_test.cljc
@@ -52,12 +52,10 @@
                    [(pt 0 5) (pt 10 5)]))))
 
   (t/testing "Two collinear overlapping segments"
-    ;; NOTE: The implementation compares orientation result (namespaced keyword ::coplanar)
-    ;; against unnamespaced :coplanar, so the collinear branch never triggers.
-    ;; Collinear overlapping segments are NOT detected as intersecting.
-    (t/is (false? (gint/intersect-segments?
-                   [(pt 0 0) (pt 10 0)]
-                   [(pt 5 0) (pt 15 0)]))))
+    ;; Collinear overlapping segments correctly detected as intersecting.
+    (t/is (true? (gint/intersect-segments?
+                  [(pt 0 0) (pt 10 0)]
+                  [(pt 5 0) (pt 15 0)]))))
 
   (t/testing "Two non-overlapping collinear segments"
     (t/is (false? (gint/intersect-segments?