chore: smol comment

Signed-off-by: blam <ben@blam.sh>

.changeset/metal-ravens-hammer.md

@@ -1,5 +1,6 @@
 ---
 '@backstage/config-loader': patch
+'@backstage/backend-defaults': patch
 ---
 
 Exclude `@backstage/backend-common` from schema collection if `@backstage/backend-defaults` is present

packages/config-loader/src/schema/collect.ts

@@ -159,7 +159,10 @@ export async function collectConfigSchemas(
     ({ packageName }) => packageName === '@backstage/backend-defaults',
   );
 
-  // Filter out the backend-common schema unless the backend-defaults schema is missing
+  // Filter out the backend-common schema unless the backend-defaults schema is missing.
+  // This was causing issue with merging of the schemas.
+  // This should be removed when we have no need for backend-common anymore, and other
+  // packages are no longer depending on it.
   return allSchemas.filter(
     ({ packageName }) =>
       packageName !== '@backstage/backend-common' || isMissingBackendDefaults,