Merge branch 'mjang-replace-mr38183' into 'master'

Replace MR 38183, subgroup support for target namespaces

See merge request gitlab-org/gitlab!46065

doc/api/import.md

@@ -13,10 +13,10 @@ POST /import/github
 | `personal_access_token`       | string | yes      | GitHub personal access token |
 | `repo_id`   | integer | yes      | GitHub repository ID     |
 | `new_name`   | string | no      | New repository name     |
-| `target_namespace`   | string | yes      | Namespace to import repository into     |
+| `target_namespace`   | string | yes      | Namespace to import repository into. Supports subgroups like `/namespace/subgroup`.     |
 
 ```shell
-curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" --data "personal_access_token=abc123&repo_id=12345&target_namespace=root" "https://gitlab.example.com/api/v4/import/github"
+curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" --data "personal_access_token=abc123&repo_id=12345&target_namespace=group/subgroup" "https://gitlab.example.com/api/v4/import/github"
 ```
 
 Example response:
@@ -51,7 +51,7 @@ POST /import/bitbucket_server
 | `bitbucket_server_project` | string | yes | Bitbucket Project Key |
 | `bitbucket_server_repo` | string | yes | Bitbucket Repository Name |
 | `new_name` | string | no | New repository name |
-| `target_namespace` | string | no | Namespace to import repository into |
+| `target_namespace` | string | no | Namespace to import repository into. Supports subgroups like `/namespace/subgroup` |
 
 ```shell
 curl --request POST \