Disable versioning checkbox after bucket creation

Fixes: https://github.com/aquarist-labs/s3gw/issues/672

References:
- https://github.com/aquarist-labs/s3gw/issues/534
- https://github.com/aquarist-labs/s3gw/pull/497

Signed-off-by: Volker Theile <vtheile@suse.com>

CHANGELOG.md

@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.20.0]
+
+### Changed
+
+- Disable versioning checkbox after bucket creation (gh#aquarist-labs/s3gw#672).
+
 ## [0.19.0]
 
 ### Added

src/frontend/src/app/pages/user/bucket/bucket-form-page/bucket-form-page.component.ts

@@ -154,8 +154,11 @@ export class BucketFormPageComponent implements OnInit, IsDirty {
           type: 'checkbox',
           name: 'VersioningEnabled',
           label: TEXT('Enabled'),
-          hint: TEXT('Enable versioning for the objects in this bucket.'),
+          hint: TEXT(
+            'Enable versioning for the objects in this bucket. Can only be enabled while bucket creation.'
+          ),
           value: false,
+          readonly: editing,
           modifiers: [
             {
               type: 'value',