Docs: Mention LFS bugs in mirroring doc

doc/user/project/repository/repository_mirroring.md

@@ -617,3 +617,14 @@ Check if the repository owner is specified in the URL of your mirrored repositor
    ```
 
 The repository owner is needed for Bitbucket to connect to the repository for mirroring.
+
+### Pull mirror is missing LFS files
+
+In some cases, pull mirroring does not transfer LFS files. This issue occurs when:
+
+- You use an SSH repository URL. The workaround is to use an HTTPS repository URL instead.
+  There is [an issue to fix this for SSH URLs](https://gitlab.com/gitlab-org/gitlab/-/issues/11997).
+- You're using GitLab 14.0 or older, and the source repository is a public Bitbucket URL.
+  This was [fixed in GitLab 14.0.6](https://gitlab.com/gitlab-org/gitlab/-/issues/335123).
+- You mirror an external repository using object storage.
+  There is [an issue to fix this](https://gitlab.com/gitlab-org/gitlab/-/issues/335495).