Reproducible on MacOS, but potentially the same issue affects Windows and Linux

How to reproduce:
1. View the attached file's "plugin.bundle" contents
2. Create a project with the default 3D template
3. Make the .meta files visible (Edit->Project Settings->Editor->Version Control->Mode)
4. Import "plugin.bundle" to the project
5. View the imported file's contents

Expected result: Meta files are not created inside the .bundle files
Actual result: Meta files are created inside the .bundle files

Reproducible with: 2017.4.40f1, 2018.4.22f1, 2019.3.12f1, 2020.1.0b8, 2020.2.0a9, 2023.1.0a3 (checked)

*Additional requirements:*
||Item||Status||
|Disallow Drag and Drop into Bundle folders|h1. ✔️|
|Disallow Drag and Drop when multiple assets are selected|h1. ✔️|
|Prevent .meta file creation|h1. ✔️|
|Do not show plugin folders as folder in project browser two column view|h1. ✔️|
|Do not show plugin folders as folders in project browser one column view|h1. ✔️|
|Handle DirectoryMonitor message when deleting an already existing .meta file in a plugin folder correctly|h1. ✔️ |
|Write tests that ensure the AssetDatabase.ValidateMoveAsset and AssetDatabase.MoveAsset APIs don't allow moving assets into loadable plugin directories|h1. ✔️|
|Update AssetDatabase.MoveAsset & AssetDatabase.ValidateMoveAsset documentation to mention new restriction|h1. ❌|
|Write test to ensure folders named "bundle", "framework", etc. are still imported |h1. ✔️|
|Write test to ensure folders named "bundle", "framework", etc. can have assets moved into them|h1. ✔️|
|Write test to make sure you can move a loadable plugin folder to another folder with no imports on its children happening|h1. ✔️|
|Reimporting loadable plugin directories should not import their contents|h1. ✔️|
|Reimporting parent folders of  loadable plugin directories should not import the loadable plugin directories' contents|h1. ✔️|