Realms deletes files in data packs that use experimental features

After uploading the world folder containing the datapacks to realm, files in the datapacks folder are incorrectly deleted, causing datapacks to not work properly.

What I expected to happen was...:
After uploading the world folder to the realm, the files in the datapack will not be deleted and the datapack will function normally.

What actually happened was...:
After uploading the world folder to realm, the files in the datapack are deleted as useless and the datapack does not function properly.

Steps to reproduce:

1. Upload world file with a datapack to a Realm.
2. Enter the Realm and notice that the datapack does not function correctly.
3. Downloading the world folder from realm and looking at the realms-upload.log file in it reveals that some files were deleted as useless.