fix config saving

web/src/components/config-form/sections/BaseSection.tsx

@@ -57,6 +57,7 @@ import { StatusBarMessagesContext } from "@/context/statusbar-provider";
 import {
   cameraUpdateTopicMap,
   buildOverrides,
+  buildConfigDataForPath,
   sanitizeSectionData as sharedSanitizeSectionData,
   requiresRestartForOverrides as sharedRequiresRestartForOverrides,
 } from "@/utils/configUtil";
@@ -507,12 +508,11 @@ export function ConfigSection({
 
       const needsRestart = requiresRestartForOverrides(sanitizedOverrides);
 
+      const configData = buildConfigDataForPath(basePath, sanitizedOverrides);
       await axios.put("config/set", {
         requires_restart: needsRestart ? 1 : 0,
         update_topic: updateTopic,
-        config_data: {
+        config_data: configData,
-          [basePath]: sanitizedOverrides,
-        },
       });
       // log save to console for debugging
       // eslint-disable-next-line no-console
@@ -625,14 +625,12 @@ export function ConfigSection({
           ? `cameras.${cameraName}.${sectionPath}`
           : sectionPath;
 
-      const configData = "";
+      const configData = buildConfigDataForPath(basePath, "");
 
       await axios.put("config/set", {
         requires_restart: requiresRestart ? 0 : 1,
         update_topic: updateTopic,
-        config_data: {
+        config_data: configData,
-          [basePath]: configData,
-        },
       });
 
       // log reset to console for debugging

web/src/pages/Settings.tsx

@@ -83,7 +83,10 @@ import axios from "axios";
 import { toast } from "sonner";
 import { mutate } from "swr";
 import { RJSFSchema } from "@rjsf/utils";
-import { prepareSectionSavePayload } from "@/utils/configUtil";
+import {
+  buildConfigDataForPath,
+  prepareSectionSavePayload,
+} from "@/utils/configUtil";
 import ActivityIndicator from "@/components/indicators/activity-indicator";
 import RestartDialog from "@/components/overlay/dialog/RestartDialog";
 import SaveAllPreviewPopover, {
@@ -764,10 +767,14 @@ export default function Settings() {
           continue;
         }
 
+        const configData = buildConfigDataForPath(
+          payload.basePath,
+          payload.sanitizedOverrides,
+        );
         await axios.put("config/set", {
           requires_restart: payload.needsRestart ? 1 : 0,
           update_topic: payload.updateTopic,
-          config_data: { [payload.basePath]: payload.sanitizedOverrides },
+          config_data: configData,
         });
 
         // eslint-disable-next-line no-console

web/src/utils/configUtil.ts

@@ -9,6 +9,7 @@ import cloneDeep from "lodash/cloneDeep";
 import unset from "lodash/unset";
 import isEqual from "lodash/isEqual";
 import mergeWith from "lodash/mergeWith";
+import set from "lodash/set";
 import { isJsonObject } from "@/lib/utils";
 import { applySchemaDefaults } from "@/lib/config-schema";
 import { normalizeConfigValue } from "@/hooks/use-config-override";
@@ -169,6 +170,24 @@ export function sanitizeSectionData(
   return cleaned;
 }
 
+// ---------------------------------------------------------------------------
+// buildConfigDataForPath — convert dotted path to nested config_data payload
+// ---------------------------------------------------------------------------
+
+// Converts a dotted path (e.g. "cameras.front_door.detect") and a value into
+// a properly nested config_data object (e.g. { cameras: { front_door: { detect: value } } }).
+// This ensures the backend's flatten_config_data function can correctly distinguish
+// between path separators (dots in the path) and literal dots in keys
+// (e.g. "frigate.foo.bar" in logger.logs).
+export function buildConfigDataForPath(
+  path: string,
+  value: unknown,
+): Record<string, unknown> {
+  const configData: Record<string, unknown> = {};
+  set(configData, path, value);
+  return configData;
+}
+
 // ---------------------------------------------------------------------------
 // requiresRestartForOverrides — determine whether a restart is needed
 // ---------------------------------------------------------------------------