luci-base: form.js: reuse JSONMap data provider in GridSection modals

Reuse the same data provider as the parent JSONMap instance in order
to avoid inadvertently mangling the form data when saving the modal
edit dialog.

Fixes: bb9ede238a ("luci-base: form.js: reuse JSONMap data provider in GridSection modals")
Signed-off-by: Jo-Philipp Wich <jo@mein.io>

diff --git a/modules/luci-base/htdocs/luci-static/resources/form.js b/modules/luci-base/htdocs/luci-static/resources/form.js
index 4edfc7e1352a1aed3ae70ba4779b5a3a3f26de28..317b49fdfeebde5f322184fe2bdd8e825fdb9bec 100644 (file)
--- a/modules/luci-base/htdocs/luci-static/resources/form.js
+++ b/modules/luci-base/htdocs/luci-static/resources/form.js
@@ -3213,10 +3213,13 @@ var CBITableSection = CBITypedSection.extend(/** @lends LuCI.form.TableSection.p
 
                        var m;
 
-                       if (parent instanceof CBIJSONMap)
-                               m = new CBIJSONMap(parent.data.data, null, null);
-                       else
+                       if (parent instanceof CBIJSONMap) {
+                               m = new CBIJSONMap(null, null, null);
+                               m.data = parent.data;
+                       }
+                       else {
                                m = new CBIMap(parent.config, null, null);
+                       }
 
                        var s = m.section(CBINamedSection, section_id, this.sectiontype);